diff --git a/apps/setting/settings.js b/apps/setting/settings.js
index 9b0027904..db3150f00 100644
--- a/apps/setting/settings.js
+++ b/apps/setting/settings.js
@@ -26,6 +26,7 @@ function pushMenu(menu) {
 }
 
 function restoreMenu(menu) {
+  // equivalent to pushMenu(null); popMenu(menu);
   if(!menu[""]) menu[""] = {};
   menu[""].scroll = menuScroller.scroll;
   menuScroller = E.showMenu(menu).scroller;