diff --git a/js/bootstrap-scrollspy.js b/js/bootstrap-scrollspy.js
index b7ff907f71..dea6e95f03 100644
--- a/js/bootstrap-scrollspy.js
+++ b/js/bootstrap-scrollspy.js
@@ -92,8 +92,10 @@
           .addClass('active')
 
         if ( active.parent('.dropdown-menu') )  {
-          active.closest('li.dropdown').addClass('active')
+          active = active.closest('li.dropdown').addClass('active')
         }
+
+        active.trigger('active')
       }
 
   }