diff --git a/lib/util.js b/lib/util.js
index 574b3b09..38efa4d3 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -870,12 +870,12 @@ Util = exports || {};
        [].shift.call(arguments);
         if (pCallBack) {
             if (Util.isFunction(pCallBack))
-                lRet = pCallBack.apply(this, arguments);
+                lRet = pCallBack.apply(null, arguments);
             else {
                 lCallBack   = pCallBack.callback || pCallBack.success;
                 /* add first element */
                 [].unshift.call(arguments, lCallBack);
-                lRet        = Util.exec.apply(this, arguments);
+                lRet        = Util.exec.apply(null, arguments);
             }
         }