diff --git a/modules/system/system.install b/modules/system/system.install
index e067444..a59344b 100644
--- a/modules/system/system.install
+++ b/modules/system/system.install
@@ -1975,7 +1975,7 @@ function system_update_7013() {
 }
 
 /**
- * Change the user logout path.
+ * Change the user logout path and reset system module menu links.
  */
 function system_update_7015() {
   db_update('menu_links')
@@ -1987,18 +1987,8 @@ function system_update_7015() {
     ->condition('router_path', 'logout')
     ->execute();
 
-  db_update('menu_links')
-    ->fields(array(
-      'menu_name' => 'user-menu',
-      'plid' => 0,
-    ))
-    ->condition(db_or()
-      ->condition('link_path', 'user/logout')
-      ->condition('router_path', 'user/logout')
-    )
-    ->condition('module', 'system')
-    ->condition('customized', 0)
-    ->execute();
+  // Remove all system module owned menu links to reset the administration menu.
+  db_delete('menu_links')->condition('module', 'system')->execute();
 }
 
 /**