diff --git a/Gruntfile.js b/Gruntfile.js
index 1dbc61a1ca..f8df90bd4e 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -159,7 +159,7 @@ module.exports = function(grunt) {
     watch: {
       scripts: {
         files: ['js/**/*.js', 'ext/**/*.js'],
-        tasks: ['concat:dist', 'string-replace'],
+        tasks: ['concat:dist', 'string-replace', 'concat:bundle'],
         options: {
           spawn: false
         }