diff --git a/jobs/notifications/IssuePublishedNotifyUsers.php b/jobs/notifications/IssuePublishedNotifyUsers.php
index 5b209d50012..fb17bb9020f 100644
--- a/jobs/notifications/IssuePublishedNotifyUsers.php
+++ b/jobs/notifications/IssuePublishedNotifyUsers.php
@@ -28,6 +28,7 @@
 use PKP\context\Context;
 use PKP\emailTemplate\EmailTemplate;
 use PKP\jobs\BaseJob;
+use PKP\notification\Notification as PKPNotification;
 use PKP\user\User;
 
 class IssuePublishedNotifyUsers extends BaseJob
@@ -99,7 +100,7 @@ protected function createMailable(
         Issue $issue,
         User $recipient,
         EmailTemplate $template,
-        Notification|\PKP\notification\Notification $notification
+        PKPNotification $notification
     ): IssuePublishedNotify {
         $mailable = new IssuePublishedNotify($context, $issue);
         $mailable