diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index 5243ed516cb179..853c4f577e5349 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -9,6 +9,7 @@ class NotifyService < BaseService
     update
     poll
     emoji_reaction
+    warning
   ).freeze
 
   def call(recipient, type, activity)