diff --git a/app/controllers/discusses_controller.rb b/app/controllers/discusses_controller.rb
index ebd3ca251..fba1607a5 100644
--- a/app/controllers/discusses_controller.rb
+++ b/app/controllers/discusses_controller.rb
@@ -1,4 +1,5 @@
 class DiscussesController < ApplicationController
+  include ApplicationHelper
   LIMIT = 10
   before_action :require_login, only: [:create, :reply, :hidden, :reward_code, :plus, :destroy]
   before_action :find_container, only: [:index, :hidden]