diff --git a/fhem/www/frontend/www/frontend/index.html b/fhem/www/frontend/www/frontend/index.html
index 9638fe68c..b4f2836e2 100644
--- a/fhem/www/frontend/www/frontend/index.html
+++ b/fhem/www/frontend/www/frontend/index.html
@@ -21,7 +21,7 @@
     
     <link rel="stylesheet" type="text/css" href="lib/ext-4.2.0.663/ext-theme-gray-all.css" />
     <link rel="stylesheet" type="text/css" href="app/resources/application.css" />
-    <script type="text/javascript" src="lib/ext-4.2.0.663/ext-all-debug.js"></script>
+    <script type="text/javascript" src="lib/ext-4.2.0.663/ext-all.js"></script>
     <script type="text/javascript" src="app/userconfig.js"></script>
     <script type="text/javascript" src="app/app.js"></script>