diff --git a/lib/client/dom.js b/lib/client/dom.js
index 760445fb..0d1c9788 100644
--- a/lib/client/dom.js
+++ b/lib/client/dom.js
@@ -643,8 +643,7 @@ var CloudCmd, Util, DOM, CloudFunc, Dialog;
             };
         },
         NotifyProto                 = function() {
-            var Notify          = this,
-                Show            = false;
+            var Show, Notify = this;
             
             Events.add({
                 'blur' :function() {
@@ -665,7 +664,7 @@ var CloudCmd, Util, DOM, CloudFunc, Dialog;
             this.check = function () {
                 var ret, 
                     Not     = Notification,
-                    perm    = Not.permission;
+                    perm    = Not && Not.permission;
                 
                 if (perm === 'granted')
                     ret = true;
@@ -674,7 +673,7 @@ var CloudCmd, Util, DOM, CloudFunc, Dialog;
             };
             
             this.request = function () {
-                var Not = Notification;
+                var Not = window.Notification;
                 
                 if (Not)
                     Not.requestPermission();