diff --git a/db/migrate/20160328115649_migrate_new_notification_setting.rb b/db/migrate/20160328115649_migrate_new_notification_setting.rb
index 6a68890f5b1..0a110869027 100644
--- a/db/migrate/20160328115649_migrate_new_notification_setting.rb
+++ b/db/migrate/20160328115649_migrate_new_notification_setting.rb
@@ -12,6 +12,6 @@ class MigrateNewNotificationSetting < ActiveRecord::Migration
   end
 
   def down
-    NotificationSetting.delete_all
+    execute "DELETE FROM notification_settings"
   end
 end