diff --git a/source/Ox.UI/js/Menu/Menu.js b/source/Ox.UI/js/Menu/Menu.js
index 853e93d9..9967becb 100644
--- a/source/Ox.UI/js/Menu/Menu.js
+++ b/source/Ox.UI/js/Menu/Menu.js
@@ -16,7 +16,6 @@ Ox.Menu <f> Menu Object
         side     <s>       open to 'bottom' or 'right'
         size     <s>       'large', 'medium' or 'small'
     self    <o> shared private variable
-
     change_groupId  <!>  {id, value}     checked item of a group has changed
     click_itemId    <!>                    item not belonging to a group was clicked
     click_menuId    <!>    {id, value}     item not belonging to a group was clicked
@@ -316,7 +315,7 @@ Ox.Menu = function(options, self) {
             var position;
             if ('id' in item) {
                 that.items.push(
-                    Ox.MenuItem(Ox.extend(item, {
+                    Ox.MenuItem(Ox.extend(Ox.clone(item), {
                         maxWidth: self.options.maxWidth,
                         menu: that,
                         position: position = that.items.length