diff --git a/assets/javascripts/app.js b/assets/javascripts/app.js
index 2d0686f..725c407 100644
--- a/assets/javascripts/app.js
+++ b/assets/javascripts/app.js
@@ -895,7 +895,7 @@ function transdate(){
       }
     });
 
-  $('header #main-nav>li').on('mouseover',function(){
+  $('header #main-nav>li').hover(function(){
     if (!calc_menu_flag){
       calc_menu_pos();
     }