diff --git a/src/Service/UptimeRobotApiService.php b/src/Service/UptimeRobotApiService.php
index 73f7033..7439fa3 100644
--- a/src/Service/UptimeRobotApiService.php
+++ b/src/Service/UptimeRobotApiService.php
@@ -98,7 +98,7 @@ class UptimeRobotApiService
 
             foreach ($alertContacts as $alertContactName) {
                 if (!empty($alertContactName)) {
-                    $alertContact = $this->alertContactService->findbyName($alertContactName);
+                    $alertContact = $this->getAlertContactService()->findbyName($alertContactName);
                     if ($alertContact instanceof AlertContact) {
                         $this->alertContacts[] = $alertContact;
                     }