diff --git a/switchery.js b/switchery.js
index baa4c6b..083da3f 100644
--- a/switchery.js
+++ b/switchery.js
@@ -376,9 +376,9 @@ Switchery.prototype.enable = function() {
  */
 
 Switchery.prototype.disable = function() {
-  if (this.options.disabled) this.options.disabled = true;
-  if (this.element.disabled) this.element.disabled = true;
-  if (this.element.readOnly) this.element.readOnly = true;
+  if (!this.options.disabled) this.options.disabled = true;
+  if (!this.element.disabled) this.element.disabled = true;
+  if (!this.element.readOnly) this.element.readOnly = true;
   this.switcher.style.opacity = this.options.disabledOpacity;
   this.destroy();
 };