diff --git a/js/angular/service/backdrop.js b/js/angular/service/backdrop.js
index 6d8db873e9..ea9e7b5da2 100644
--- a/js/angular/service/backdrop.js
+++ b/js/angular/service/backdrop.js
@@ -76,7 +76,7 @@ function($document) {
       el.removeClass('active');
       setTimeout(function() {
         !backdropHolds && el.removeClass('visible');
-      }, 100);
+      }, 400);
     }
   }