diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index dfa0ea9a65..2055c0df16 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -24,6 +24,7 @@ class ApplicationController < ActionController::Base
   helper 'markdown'
   helper 'footer_links'
   helper 'discourse'
+  helper 'checkout'
 
   protect_from_forgery