diff --git a/karma.conf.js b/karma.conf.js
index 89a716fb5..970b152c5 100755
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -17,7 +17,7 @@ module.exports = function(config) {
       // read css from compiled css
       'docs/build/uncompressed/**/*.css',
       // read js from src js
-      'src/**/*.js',
+      'src/definitions/**/*.js',
       // require helpers
       'test/helpers/*.js',
       // require fixtures
@@ -40,7 +40,7 @@ module.exports = function(config) {
 
     preprocessors: {
       '**/*.html': [],
-      'src/**/*.js': 'coverage'
+      'src/definitions/**/*.js': 'coverage'
     },
 
     // test results reporter to use
diff --git a/src/definitions/modules/checkbox.js b/src/definitions/modules/checkbox.js
old mode 100644
new mode 100755
index e189530f6..727531bfd
--- a/src/definitions/modules/checkbox.js
+++ b/src/definitions/modules/checkbox.js
@@ -88,6 +88,9 @@ $.fn.checkbox = function(parameters) {
             .off(eventNamespace)
             .removeData(moduleNamespace)
           ;
+          $input
+            .off(eventNamespace, module.event.keydown)
+          ;
           $label
             .off(eventNamespace)
           ;