diff --git a/lib/server/appcache.js b/lib/server/appcache.js
index c3f89080..e5d0346c 100644
--- a/lib/server/appcache.js
+++ b/lib/server/appcache.js
@@ -1,5 +1,5 @@
 (function(){
-    "use strict";
+    'use strict';
     
     if (!global.cloudcmd)
         return console.log(