diff --git a/app/controllers/wechats_controller.rb b/app/controllers/wechats_controller.rb
index 1074ebc3f..d5dfb88f7 100644
--- a/app/controllers/wechats_controller.rb
+++ b/app/controllers/wechats_controller.rb
@@ -212,7 +212,7 @@ class WechatsController < ActionController::Base
         return
       end
 
-      render template: File.join(Rails.root, "public/wechat/app.html"), layout: nil
+      render file: File.join(Rails.root, "public/wechat/app.html")
     end
 
     private