diff --git a/src/clojure/lazytest/filter.clj b/src/clojure/lazytest/filter.clj
index cb09f1d..ba725b0 100644
--- a/src/clojure/lazytest/filter.clj
+++ b/src/clojure/lazytest/filter.clj
@@ -87,10 +87,10 @@
   [ns-suite config]
   (let [var-filter (map (comp symbol namespace) (:var-filter config))
         ns-filter (not-empty (into #{} (concat var-filter (:ns-filter config))))]
-    (when (and ns-filter
-               (ns-filter (:doc ns-suite)))
-      (filter-suite ns-suite config))
-    (filter-suite ns-suite config)))
+    (if ns-filter
+      (when (ns-filter (:doc ns-suite))
+        (filter-suite ns-suite config))
+      (filter-suite ns-suite config))))
 
 (defmethod filter-tree :lazytest/run
   filter-tree--lazytest-run
diff --git a/src/clojure/lazytest/main.clj b/src/clojure/lazytest/main.clj
index 71ceb33..41db606 100644
--- a/src/clojure/lazytest/main.clj
+++ b/src/clojure/lazytest/main.clj
@@ -3,7 +3,6 @@
   (:gen-class)
   (:require
    [clojure.java.io :as io]
-   [clojure.set :as set]
    [clojure.tools.namespace.file :refer [read-file-ns-decl]]
    [clojure.tools.namespace.find :refer [find-sources-in-dir]]
    [lazytest.cli :refer [validate-opts]]
@@ -13,18 +12,12 @@
    [lazytest.runner :refer [run-tests]]
    [lazytest.watch :as watch]))
 
-(defn find-ns-decls [config dirs]
-  (let [var-filter-nses (->> (:var-filter config)
-                             (map (comp symbol namespace))
-                             (into #{}))
-        ns-filter (or (not-empty (set/union (:ns-filter config) var-filter-nses))
-                      any?)]
-    (into []
-          (comp (mapcat find-sources-in-dir)
-                (keep read-file-ns-decl)
-                (keep second)
-                (filter ns-filter))
-          dirs)))
+(defn find-ns-decls [dirs]
+  (into []
+        (comp (mapcat find-sources-in-dir)
+              (keep read-file-ns-decl)
+              (keep second))
+        dirs))
 
 (defn add-md-tests
   [config dirs]
@@ -39,7 +32,7 @@
 (defn require-dirs [config dir]
   (let [dirs (map io/file (or dir #{"test"}))
         md-nses (add-md-tests config dirs)
-        nses (into (find-ns-decls config dirs)
+        nses (into (find-ns-decls dirs)
                    md-nses)]
     (when (empty? nses)
       (throw (ex-info "No namespaces to run" {:dir dir})))
diff --git a/test/clojure/lazytest/find_test.clj b/test/clojure/lazytest/find_test.clj
index ab73e07..9ddc523 100644
--- a/test/clojure/lazytest/find_test.clj
+++ b/test/clojure/lazytest/find_test.clj
@@ -16,8 +16,7 @@
                   (vreset! output (with-out-str-data-map
                                     (main/run ["--dir" "corpus/find_tests"
                                                "--output" "nested*"]))))
-                 (after (remove-ns 'find-tests.examples)
-                        (vreset! output nil))]}
+                 (after (vreset! output nil))]}
       (it "runs all suites"
         (expect
           (match?