diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 9ef6783e5..023603b33 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -20,7 +20,7 @@ class ApplicationController < ActionController::Base
   end
 
   def not_found
-    render file: 'app/views/errors/404', status: :not_found, layout: false
+    render file: 'app/views/errors/404.html', status: :not_found, layout: false
   end
 
   def after_sign_in_path_for(_resource)