Index: wp-admin/nav-menus.php
===================================================================
--- wp-admin/nav-menus.php	(revision 13653)
+++ wp-admin/nav-menus.php	(working copy)
@@ -128,7 +128,7 @@
 		$object_id = isset( $_POST['item-postmenu'.$k] )? $_POST['item-postmenu'.$k] : 0;
 		$parent_id = isset( $_POST['item-parent'.$k] )? $_POST['item-parent'.$k] : 0;
 		$custom_title = isset( $_POST['item-title'.$k] )?  $_POST['item-title'.$k] : '';
-		$custom_linkurl = ( isset( $_POST['item-url'.$k] ) && 'custom' == $_POST['linktype'.$k] ) ? $_POST['item-url'.$k] : '';
+		$custom_linkurl = ( isset( $_POST['item-url'.$k] ) && 'Custom' == $_POST['item-type'.$k] ) ? $_POST['item-url'.$k] : '';
 		$custom_description = isset( $_POST['item-description'.$k] )? $_POST['item-description'.$k] : '';
 
 		// doesn't seem to be used by UI