diff --git a/app/services/notification_service.ts b/app/services/notification_service.ts
index 3a38ae4..6ab4c46 100644
--- a/app/services/notification_service.ts
+++ b/app/services/notification_service.ts
@@ -49,7 +49,7 @@ export class NotificationService {
     if (notificationId === 'ROOM_UPDATED') {
       await colle.load('room')
     }
-    const payload = Object.assign(DEFAULT_NOTIFICATION, NOTIFICATIONS[notificationId](colle, args))
+    const payload = Object.assign({}, DEFAULT_NOTIFICATION, NOTIFICATIONS[notificationId](colle, args))
 
     const subscriptions = await Subscription.query()
       .where('enabled', true)