diff --git a/app/controllers/managements_controller.rb b/app/controllers/managements_controller.rb
index 6ab4ed43..d3da4c46 100644
--- a/app/controllers/managements_controller.rb
+++ b/app/controllers/managements_controller.rb
@@ -33,6 +33,7 @@ class ManagementsController < ApplicationController
   def subject_level_system
     @levels = SubjectLevelSystem.all
     respond_to do |format|
+      format.js
       format.html
       format.xls{
         time = Time.now.strftime("%Y%m%d")