diff --git a/inc/notificationtargetorder.class.php b/inc/notificationtargetorder.class.php
index 3a3a1d44c5..b7c8af6ed5 100644
--- a/inc/notificationtargetorder.class.php
+++ b/inc/notificationtargetorder.class.php
@@ -69,7 +69,7 @@ public function addDataForTemplate($event, $options = []) {
                '##order.item.numorder##'     => $order['num_order'],
                '##order.item.url##'          => $this->formatURL(
                   $options['additionnaloption']['usertype'],
-                  $order->getType()."_".$id
+                  PluginOrderOrder::class."_".$id
                ),
                '##order.item.orderdate##'    => Html::convDate($order["order_date"]),
                '##order.item.duedate##'      => Html::convDate($order["duedate"]),