diff --git a/webapp/src/Controller/Jury/ClarificationController.php b/webapp/src/Controller/Jury/ClarificationController.php
index fdfbc18012..93d96ebec2 100644
--- a/webapp/src/Controller/Jury/ClarificationController.php
+++ b/webapp/src/Controller/Jury/ClarificationController.php
@@ -350,8 +350,7 @@ public function changeQueueAction(Request $request, int $clarId): Response
     public function checkIfClaimed(Request $request): Response
     {
         $clarid = $request->query->get('clarid');
-        $currentUser = $this->getUser();
-        $currentUserName = $currentUser->getUsername();
+        $currentUserName = $this->getUser()->getUserIdentifier();
 
         $queryBuilder = $this->em->createQueryBuilder()
             ->select('clar.jury_member')