diff --git a/demo/app/js/index.js b/demo/app/js/index.js
index 0705431f..53ff009e 100644
--- a/demo/app/js/index.js
+++ b/demo/app/js/index.js
@@ -20,4 +20,3 @@ $(document).ready(function() {
   });
 
 });
-window.abc = 5;