diff --git a/lib/controllers/notification.dart b/lib/controllers/notification.dart
index 5d343cc..681c625 100644
--- a/lib/controllers/notification.dart
+++ b/lib/controllers/notification.dart
@@ -68,6 +68,8 @@ class NotificationController
           );
         }
       });
+
+      ref.onDispose(() => notificationChannel.setMethodCallHandler(null));
     }
 
     return notifications;