diff --git a/backend/prisma/migrations/20260516_enable_chat_realtime/migration.sql b/backend/prisma/migrations/20260516_enable_chat_realtime/migration.sql
new file mode 100644
index 0000000..26abc89
--- /dev/null
+++ b/backend/prisma/migrations/20260516_enable_chat_realtime/migration.sql
@@ -0,0 +1,8 @@
+-- Enable Supabase Realtime for direct_messages and chat_messages tables.
+-- Fixes missing live delivery on the DM-Page:
+-- rebreak.direct_messages and rebreak.chat_messages were not part of the
+-- supabase_realtime publication, causing postgres_changes subscriptions
+-- (INSERT events) to be silently dropped — messages only appeared after
+-- manual refresh.
+ALTER PUBLICATION supabase_realtime ADD TABLE rebreak.direct_messages;
+ALTER PUBLICATION supabase_realtime ADD TABLE rebreak.chat_messages;