diff --git a/backend/prisma/migrations/20260511_enable_realtime_notifications/migration.sql b/backend/prisma/migrations/20260511_enable_realtime_notifications/migration.sql
new file mode 100644
index 0000000..e2bb049
--- /dev/null
+++ b/backend/prisma/migrations/20260511_enable_realtime_notifications/migration.sql
@@ -0,0 +1,5 @@
+-- Enable Supabase Realtime for notifications table
+-- Fixes CHANNEL_ERROR in notifRealtime subscription:
+-- rebreak.notifications was not part of supabase_realtime publication,
+-- causing postgres_changes subscriptions to fail with CHANNEL_ERROR.
+ALTER PUBLICATION supabase_realtime ADD TABLE rebreak.notifications;