diff --git a/actionmailbox/app/models/action_mailbox/inbound_email.rb b/actionmailbox/app/models/action_mailbox/inbound_email.rb
index 92b5da06303..76af7caf922 100644
--- a/actionmailbox/app/models/action_mailbox/inbound_email.rb
+++ b/actionmailbox/app/models/action_mailbox/inbound_email.rb
@@ -28,7 +28,7 @@ module ActionMailbox
     include Incineratable, MessageId, Routable
 
     has_one_attached :raw_email, service: ActionMailbox.storage_service
-    enum status: %i[ pending processing delivered failed bounced ]
+    enum :status, %i[ pending processing delivered failed bounced ]
 
     def mail
       @mail ||= Mail.from_source(source)