diff --git a/src/Worker/Notifier.php b/src/Worker/Notifier.php
index ef4e882492..512fbe8844 100644
--- a/src/Worker/Notifier.php
+++ b/src/Worker/Notifier.php
@@ -152,7 +152,7 @@ class Notifier
 		if (!empty($target_item) && !empty($items)) {
 			$parent = $items[0];
 
-			$delivery_queue_count += self::activityPubDelivery($cmd, $target_item, $parent, $a->queue['priority'], defaults($a->query_string, 'created', ''));
+			$delivery_queue_count += self::activityPubDelivery($cmd, $target_item, $parent, $a->queue['priority'], $a->queue['created']);
 
 			$fields = ['network', 'author-id', 'owner-id'];
 			$condition = ['uri' => $target_item["thr-parent"], 'uid' => $target_item["uid"]];