diff --git a/webpush.module b/webpush.module
index 8397f5c..6332848 100644
--- a/webpush.module
+++ b/webpush.module
@@ -875,8 +875,8 @@ function webpush__send_notification_batch(WebpushNotification $notification_enti
     $operations[] = [
       'webpush__send_notification_batch_wrapper',
       [
-        'subscription_id' => $subscription_id,
-        'data' => $data,
+        $subscription_id,
+        $data,
       ],
     ];
   }