diff --git a/lib/client.js b/lib/client.js
index 5eb239f9..46e1f296 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -295,13 +295,13 @@ var Util, DOM, CloudFunc;
         
         function getSystemFile(pGlobal, pURL) {
             
-            function lGetSysFile(pCallBack) {
-                Util.ifExec(pGlobal, pCallBack, function(pCallBack) {
+            function lGetSysFile(callback) {
+                Util.ifExec(pGlobal, callback, function() {
                     DOM.ajax({
                         url     : pURL,
                         success : function(pLocal) {
                             pGlobal = pLocal;
-                            Util.exec(pCallBack, pLocal);
+                            Util.exec(callback, pLocal);
                         }
                     });
                 });