diff --git a/dist/menuspy.js b/dist/menuspy.js
index 889b11f..23564db 100644
--- a/dist/menuspy.js
+++ b/dist/menuspy.js
@@ -1,4 +1,4 @@
-/*! MenuSpy v1.2.0 (Nov 14 2017) - http://leocs.me/menuspy/ - Copyright (c) 2017 Leonardo Santos; MIT License */
+/*! MenuSpy v1.2.1 (Nov 15 2017) - http://leocs.me/menuspy/ - Copyright (c) 2017 Leonardo Santos; MIT License */
 (function (global, factory) {
 	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
 	typeof define === 'function' && define.amd ? define(factory) :
@@ -142,7 +142,7 @@ MenuSpy.prototype.activateItem = function activateItem (inViewElm) {
     this.scrollItems.forEach(function (item) { return utils.removeClass(item.elm.parentNode, activeClass); });
     this.lastInViewElm = null;
 
-    if (this.enableLocationHash) {
+    if (this.options.enableLocationHash) {
       this.debouncedHashFn();
     }
 
@@ -162,7 +162,7 @@ MenuSpy.prototype.activateItem = function activateItem (inViewElm) {
           callback.call(this$1, item);
         }
 
-        if (this$1.enableLocationHash) {
+        if (this$1.options.enableLocationHash) {
           this$1.debouncedHashFn();
         }
       }
diff --git a/dist/menuspy.min.js b/dist/menuspy.min.js
index ed36457..08c88be 100644
--- a/dist/menuspy.min.js
+++ b/dist/menuspy.min.js
@@ -1,2 +1,2 @@
-/*! MenuSpy v1.2.0 (Nov 14 2017) - http://leocs.me/menuspy/ - Copyright (c) 2017 Leonardo Santos; MIT License */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.MenuSpy=t()}(this,function(){"use strict";var e={extend:function(e,t){for(var s in t)t.hasOwnProperty(s)&&(e[s]=t[s]);return e},offset:function(e){var t=e.getBoundingClientRect();return{top:t.top+window.pageYOffset,left:t.left+window.pageXOffset}},scrollTop:function(){return window.pageYOffset||document.documentElement.scrollTop},addClass:function(e,t){if(e.classList)e.classList.add(t);else{var s=e.className.split(" ");-1===s.indexOf(t)&&s.push(t),e.className=s.join(" ")}},removeClass:function(e,t){e.classList?e.classList.remove(t):e.className=e.className.replace(new RegExp("(^|\\b)"+t.split(" ").join("|")+"(\\b|$)","gi")," ")},debounce:function(e,t){var s=null;return function(){var n=arguments,i=this;s||(s=setTimeout(function(){return s=0,e.apply(i,n)},t))}}},t=function(t,s){var n=this;if(t){var i={menuItemSelector:'a[href^="#"]',activeClass:"active",threshold:15,enableLocationHash:!0,hashTimeout:600,callback:null};this.element=t,this.options=e.extend(i,s),this.assignValues(),this.debouncedAssignValuesFn=e.debounce(function(){return n.assignValues()}),window.addEventListener("resize",this.debouncedAssignValuesFn),this.debouncedHashFn=e.debounce(function(){var t=n.lastInViewElm?"#"+n.lastInViewElm.id:"#";if(history.replaceState)history.replaceState(null,null,t);else{var s=e.scrollTop();window.location.hash=t,window.scrollTo(0,s)}},this.options.hashTimeout),this.cacheItems(),this.scrollFn()}};return t.prototype.assignValues=function(){this.currScrollTop=0,this.lastInViewElm=null,this.menuHeight=this.element.offsetHeight+this.options.threshold,this.menuItems=[].slice.call(this.element.querySelectorAll(this.options.menuItemSelector)),this.raf=null},t.prototype.cacheItems=function(){this.scrollItems=this.menuItems.map(function(t){var s=t.dataset.target?document.querySelector(t.dataset.target):document.getElementById(t.hash.slice(1));if(s){return{elm:t,target:s,offset:e.offset(s).top}}return!1}),this.scrollItems=this.scrollItems.filter(Boolean)},t.prototype.tick=function(){var e=this.currScrollTop+this.menuHeight,t=this.scrollItems.filter(function(t){return t.offset<e});this.activateItem(t.pop())},t.prototype.activateItem=function(t){var s=this,n=this.options,i=n.activeClass,o=n.callback;if(!t)return this.scrollItems.forEach(function(t){return e.removeClass(t.elm.parentNode,i)}),this.lastInViewElm=null,void(this.enableLocationHash&&this.debouncedHashFn());this.lastInViewElm!==t.target&&(this.lastInViewElm=t.target,this.scrollItems.forEach(function(n){e.removeClass(n.elm.parentNode,i),n.target===t.target&&(e.addClass(n.elm.parentNode,i),"function"==typeof o&&o.call(s,n),s.enableLocationHash&&s.debouncedHashFn())}))},t.prototype.scrollFn=function(){var t=e.scrollTop();this.currScrollTop!==t&&(this.currScrollTop=t,this.tick()),this.raf=window.requestAnimationFrame(this.scrollFn.bind(this))},t.prototype.destroy=function(){this.raf&&window.cancelAnimationFrame(this.raf),window.removeEventListener("resize",this.debouncedAssignValuesFn)},t});
\ No newline at end of file
+/*! MenuSpy v1.2.1 (Nov 15 2017) - http://leocs.me/menuspy/ - Copyright (c) 2017 Leonardo Santos; MIT License */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.MenuSpy=e()}(this,function(){"use strict";var t={extend:function(t,e){for(var s in e)e.hasOwnProperty(s)&&(t[s]=e[s]);return t},offset:function(t){var e=t.getBoundingClientRect();return{top:e.top+window.pageYOffset,left:e.left+window.pageXOffset}},scrollTop:function(){return window.pageYOffset||document.documentElement.scrollTop},addClass:function(t,e){if(t.classList)t.classList.add(e);else{var s=t.className.split(" ");-1===s.indexOf(e)&&s.push(e),t.className=s.join(" ")}},removeClass:function(t,e){t.classList?t.classList.remove(e):t.className=t.className.replace(new RegExp("(^|\\b)"+e.split(" ").join("|")+"(\\b|$)","gi")," ")},debounce:function(t,e){var s=null;return function(){var n=arguments,o=this;s||(s=setTimeout(function(){return s=0,t.apply(o,n)},e))}}},e=function(e,s){var n=this;if(e){var o={menuItemSelector:'a[href^="#"]',activeClass:"active",threshold:15,enableLocationHash:!0,hashTimeout:600,callback:null};this.element=e,this.options=t.extend(o,s),this.assignValues(),this.debouncedAssignValuesFn=t.debounce(function(){return n.assignValues()}),window.addEventListener("resize",this.debouncedAssignValuesFn),this.debouncedHashFn=t.debounce(function(){var e=n.lastInViewElm?"#"+n.lastInViewElm.id:"#";if(history.replaceState)history.replaceState(null,null,e);else{var s=t.scrollTop();window.location.hash=e,window.scrollTo(0,s)}},this.options.hashTimeout),this.cacheItems(),this.scrollFn()}};return e.prototype.assignValues=function(){this.currScrollTop=0,this.lastInViewElm=null,this.menuHeight=this.element.offsetHeight+this.options.threshold,this.menuItems=[].slice.call(this.element.querySelectorAll(this.options.menuItemSelector)),this.raf=null},e.prototype.cacheItems=function(){this.scrollItems=this.menuItems.map(function(e){var s=e.dataset.target?document.querySelector(e.dataset.target):document.getElementById(e.hash.slice(1));if(s){return{elm:e,target:s,offset:t.offset(s).top}}return!1}),this.scrollItems=this.scrollItems.filter(Boolean)},e.prototype.tick=function(){var t=this.currScrollTop+this.menuHeight,e=this.scrollItems.filter(function(e){return e.offset<t});this.activateItem(e.pop())},e.prototype.activateItem=function(e){var s=this,n=this.options,o=n.activeClass,i=n.callback;if(!e)return this.scrollItems.forEach(function(e){return t.removeClass(e.elm.parentNode,o)}),this.lastInViewElm=null,void(this.options.enableLocationHash&&this.debouncedHashFn());this.lastInViewElm!==e.target&&(this.lastInViewElm=e.target,this.scrollItems.forEach(function(n){t.removeClass(n.elm.parentNode,o),n.target===e.target&&(t.addClass(n.elm.parentNode,o),"function"==typeof i&&i.call(s,n),s.options.enableLocationHash&&s.debouncedHashFn())}))},e.prototype.scrollFn=function(){var e=t.scrollTop();this.currScrollTop!==e&&(this.currScrollTop=e,this.tick()),this.raf=window.requestAnimationFrame(this.scrollFn.bind(this))},e.prototype.destroy=function(){this.raf&&window.cancelAnimationFrame(this.raf),window.removeEventListener("resize",this.debouncedAssignValuesFn)},e});
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 039cf4e..71858dd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,13 +1,18 @@
 {
   "name": "menuspy",
-  "version": "1.1.2",
+  "version": "1.2.0",
   "lockfileVersion": 1,
+  "requires": true,
   "dependencies": {
     "accepts": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.3.tgz",
       "integrity": "sha1-w8p0NJOGSMPg2cHjKN1otiLChMo=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "mime-types": "2.1.16",
+        "negotiator": "0.6.1"
+      }
     },
     "acorn": {
       "version": "5.1.1",
@@ -20,6 +25,9 @@
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
       "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
       "dev": true,
+      "requires": {
+        "acorn": "3.3.0"
+      },
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
@@ -34,6 +42,9 @@
       "resolved": "https://registry.npmjs.org/acorn-object-spread/-/acorn-object-spread-1.0.0.tgz",
       "integrity": "sha1-SOrQ9KjrFplaF6Dbn/xqyq2kumg=",
       "dev": true,
+      "requires": {
+        "acorn": "3.3.0"
+      },
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
@@ -53,7 +64,11 @@
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
       "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "co": "4.6.0",
+        "json-stable-stringify": "1.0.1"
+      }
     },
     "ajv-keywords": {
       "version": "1.5.1",
@@ -65,7 +80,12 @@
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "kind-of": "3.2.2",
+        "longest": "1.0.1",
+        "repeat-string": "1.6.1"
+      }
     },
     "ansi-escapes": {
       "version": "1.4.0",
@@ -89,19 +109,29 @@
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
       "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "micromatch": "2.3.11",
+        "normalize-path": "2.1.1"
+      }
     },
     "argparse": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
       "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "sprintf-js": "1.0.3"
+      }
     },
     "arr-diff": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
       "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "arr-flatten": "1.1.0"
+      }
     },
     "arr-flatten": {
       "version": "1.1.0",
@@ -119,7 +149,10 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "array-uniq": "1.0.3"
+      }
     },
     "array-uniq": {
       "version": "1.0.3",
@@ -185,7 +218,12 @@
       "version": "6.22.0",
       "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.22.0.tgz",
       "integrity": "sha1-AnYgvuVnqIwyVhV05/0IAdMxGOQ=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "esutils": "2.0.2",
+        "js-tokens": "3.0.2"
+      }
     },
     "backo2": {
       "version": "1.0.2",
@@ -216,13 +254,19 @@
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
       "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
       "dev": true,
-      "optional": true
+      "optional": true,
+      "requires": {
+        "tweetnacl": "0.14.5"
+      }
     },
     "better-assert": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
       "integrity": "sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "callsite": "1.0.0"
+      }
     },
     "binary-extensions": {
       "version": "1.9.0",
@@ -247,12 +291,27 @@
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.17.2.tgz",
       "integrity": "sha1-+IkqvI+eYn1Crtr7yma/WrmRBO4=",
       "dev": true,
+      "requires": {
+        "bytes": "2.4.0",
+        "content-type": "1.0.2",
+        "debug": "2.6.7",
+        "depd": "1.1.1",
+        "http-errors": "1.6.1",
+        "iconv-lite": "0.4.15",
+        "on-finished": "2.3.0",
+        "qs": "6.4.0",
+        "raw-body": "2.2.0",
+        "type-is": "1.6.15"
+      },
       "dependencies": {
         "debug": {
           "version": "2.6.7",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.7.tgz",
           "integrity": "sha1-krrR9tBbu2u6Isyoi80OyJTChh4=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
         }
       }
     },
@@ -260,25 +319,46 @@
       "version": "2.10.1",
       "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
       "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "hoek": "2.16.3"
+      }
     },
     "brace-expansion": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.8.tgz",
       "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "balanced-match": "1.0.0",
+        "concat-map": "0.0.1"
+      }
     },
     "braces": {
       "version": "1.8.5",
       "resolved": "https://registry.npmjs.org/braces/-/braces-1.8.5.tgz",
       "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "expand-range": "1.8.2",
+        "preserve": "0.2.0",
+        "repeat-element": "1.1.2"
+      }
     },
     "buble": {
       "version": "0.13.2",
       "resolved": "https://registry.npmjs.org/buble/-/buble-0.13.2.tgz",
       "integrity": "sha1-XEVycoOE6nBPHcnnpdoWbA1+4uQ=",
       "dev": true,
+      "requires": {
+        "acorn": "3.3.0",
+        "acorn-jsx": "3.0.1",
+        "acorn-object-spread": "1.0.0",
+        "chalk": "1.1.3",
+        "magic-string": "0.14.0",
+        "minimist": "1.2.0",
+        "os-homedir": "1.0.2"
+      },
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
@@ -304,7 +384,10 @@
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
       "integrity": "sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "callsites": "0.2.0"
+      }
     },
     "callsite": {
       "version": "1.0.0",
@@ -334,19 +417,40 @@
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/center-align/-/center-align-0.1.3.tgz",
       "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "align-text": "0.1.4",
+        "lazy-cache": "1.0.4"
+      }
     },
     "chalk": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "ansi-styles": "2.2.1",
+        "escape-string-regexp": "1.0.5",
+        "has-ansi": "2.0.0",
+        "strip-ansi": "3.0.1",
+        "supports-color": "2.0.0"
+      }
     },
     "chokidar": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-1.7.0.tgz",
       "integrity": "sha1-eY5ol3gVHIB2tLNg5e3SjNortGg=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "anymatch": "1.3.2",
+        "async-each": "1.0.1",
+        "glob-parent": "2.0.0",
+        "inherits": "2.0.3",
+        "is-binary-path": "1.0.1",
+        "is-glob": "2.0.1",
+        "path-is-absolute": "1.0.1",
+        "readdirp": "2.1.0"
+      }
     },
     "circular-json": {
       "version": "0.3.3",
@@ -358,7 +462,10 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-1.0.2.tgz",
       "integrity": "sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "restore-cursor": "1.0.1"
+      }
     },
     "cli-width": {
       "version": "2.1.0",
@@ -371,6 +478,11 @@
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
       "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
       "dev": true,
+      "requires": {
+        "center-align": "0.1.3",
+        "right-align": "0.1.3",
+        "wordwrap": "0.0.2"
+      },
       "dependencies": {
         "wordwrap": {
           "version": "0.0.2",
@@ -402,13 +514,19 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/combine-lists/-/combine-lists-1.0.1.tgz",
       "integrity": "sha1-RYwH4J4NkA/Ci3Cj/sLazR0st/Y=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "lodash": "4.17.4"
+      }
     },
     "combined-stream": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz",
       "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "delayed-stream": "1.0.0"
+      }
     },
     "commander": {
       "version": "2.11.0",
@@ -444,19 +562,33 @@
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.0.tgz",
       "integrity": "sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "inherits": "2.0.3",
+        "readable-stream": "2.3.3",
+        "typedarray": "0.0.6"
+      }
     },
     "connect": {
       "version": "3.6.2",
       "resolved": "https://registry.npmjs.org/connect/-/connect-3.6.2.tgz",
       "integrity": "sha1-aU6NIGgb/kkCgsiriGvpjwn0L+c=",
       "dev": true,
+      "requires": {
+        "debug": "2.6.7",
+        "finalhandler": "1.0.3",
+        "parseurl": "1.3.1",
+        "utils-merge": "1.0.0"
+      },
       "dependencies": {
         "debug": {
           "version": "2.6.7",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.7.tgz",
           "integrity": "sha1-krrR9tBbu2u6Isyoi80OyJTChh4=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
         }
       }
     },
@@ -488,7 +620,10 @@
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
       "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "boom": "2.10.1"
+      }
     },
     "custom-event": {
       "version": "1.0.1",
@@ -500,13 +635,19 @@
       "version": "1.0.0",
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+        "ecc-jsbn": "0.1.1",
+        "getpass": "0.1.7",
+        "jsbn": "0.1.1",
+        "tweetnacl": "0.14.5"
+      },
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
@@ -2876,13 +3092,21 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
       "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
     },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
       "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "code-point-at": "1.1.0",
+        "is-fullwidth-code-point": "1.0.0",
+        "strip-ansi": "3.0.1"
+      }
     },
     "stringstream": {
       "version": "0.0.5",
@@ -2894,7 +3118,10 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "ansi-regex": "2.1.1"
+      }
     },
     "strip-bom": {
       "version": "3.0.0",
@@ -2919,6 +3146,14 @@
       "resolved": "https://registry.npmjs.org/table/-/table-3.8.3.tgz",
       "integrity": "sha1-K7xULw/amGGnVdOUf+/Ys/UThV8=",
       "dev": true,
+      "requires": {
+        "ajv": "4.11.8",
+        "ajv-keywords": "1.5.1",
+        "chalk": "1.1.3",
+        "lodash": "4.17.4",
+        "slice-ansi": "0.0.4",
+        "string-width": "2.1.1"
+      },
       "dependencies": {
         "ansi-regex": {
           "version": "3.0.0",
@@ -2936,13 +3171,20 @@
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
           "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "2.0.0",
+            "strip-ansi": "4.0.0"
+          }
         },
         "strip-ansi": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
           "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
-          "dev": true
+          "dev": true,
+          "requires": {
+            "ansi-regex": "3.0.0"
+          }
         }
       }
     },
@@ -2968,7 +3210,10 @@
       "version": "0.0.31",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.31.tgz",
       "integrity": "sha1-jzirlDjhcxXl29izZX6L+yd65Kc=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "os-tmpdir": "1.0.2"
+      }
     },
     "to-array": {
       "version": "0.1.4",
@@ -2980,7 +3225,10 @@
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
       "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "punycode": "1.4.1"
+      }
     },
     "tryit": {
       "version": "1.0.3",
@@ -3005,13 +3253,20 @@
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "prelude-ls": "1.1.2"
+      }
     },
     "type-is": {
       "version": "1.6.15",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.15.tgz",
       "integrity": "sha1-yrEPtJCeRByChC6v4a1kbIGARBA=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "2.1.16"
+      }
     },
     "typedarray": {
       "version": "0.0.6",
@@ -3023,7 +3278,12 @@
       "version": "2.8.29",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.8.29.tgz",
       "integrity": "sha1-KcVzMUgFe7Th913zW3qcty5qWd0=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "source-map": "0.5.6",
+        "uglify-to-browserify": "1.0.2",
+        "yargs": "3.10.0"
+      }
     },
     "uglify-to-browserify": {
       "version": "1.0.2",
@@ -3048,13 +3308,20 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/user-home/-/user-home-2.0.0.tgz",
       "integrity": "sha1-nHC/2Babwdy/SGBODwS4tJzenp8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "os-homedir": "1.0.2"
+      }
     },
     "useragent": {
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.2.1.tgz",
       "integrity": "sha1-z1k+9PLRdYdei7ZY6pLhik/QbY4=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "lru-cache": "2.2.4",
+        "tmp": "0.0.31"
+      }
     },
     "util-deprecate": {
       "version": "1.0.2",
@@ -3079,6 +3346,11 @@
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "dev": true,
+      "requires": {
+        "assert-plus": "1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "1.3.0"
+      },
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
@@ -3104,7 +3376,10 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "isexe": "2.0.0"
+      }
     },
     "window-size": {
       "version": "0.1.0",
@@ -3128,13 +3403,20 @@
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "mkdirp": "0.5.1"
+      }
     },
     "ws": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.2.tgz",
       "integrity": "sha1-iiRPoFJAHgjJiGz0SoUYnh/UBn8=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "options": "0.0.6",
+        "ultron": "1.0.2"
+      }
     },
     "wtf-8": {
       "version": "1.0.0",
@@ -3158,13 +3440,22 @@
       "version": "3.10.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
       "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "camelcase": "1.2.1",
+        "cliui": "2.1.0",
+        "decamelize": "1.2.0",
+        "window-size": "0.1.0"
+      }
     },
     "yauzl": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
       "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
-      "dev": true
+      "dev": true,
+      "requires": {
+        "fd-slicer": "1.0.1"
+      }
     },
     "yeast": {
       "version": "0.1.2",
diff --git a/package.json b/package.json
index 20fdec0..62a581b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "menuspy",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "title": "MenuSpy",
   "author": {
     "email": "leocs.1991@gmail.com",
diff --git a/src/menuspy.js b/src/menuspy.js
index 53cb23f..b38fa93 100644
--- a/src/menuspy.js
+++ b/src/menuspy.js
@@ -70,7 +70,7 @@ class MenuSpy {
       this.scrollItems.forEach((item) => utils.removeClass(item.elm.parentNode, activeClass));
       this.lastInViewElm = null;
 
-      if (this.enableLocationHash) {
+      if (this.options.enableLocationHash) {
         this.debouncedHashFn();
       }
 
@@ -90,7 +90,7 @@ class MenuSpy {
             callback.call(this, item);
           }
 
-          if (this.enableLocationHash) {
+          if (this.options.enableLocationHash) {
             this.debouncedHashFn();
           }
         }