diff --git a/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php b/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php
index 95ab71d4b..83f9ca460 100644
--- a/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php
+++ b/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php
@@ -11,6 +11,7 @@ declare(strict_types=1);
 
 namespace Chill\PersonBundle\EventListener;
 
+use Chill\MainBundle\Entity\User;
 use Chill\PersonBundle\Entity\AccompanyingPeriod\AccompanyingPeriodWork;
 use Symfony\Component\Security\Core\Security;
 
@@ -25,7 +26,7 @@ class AccompanyingPeriodWorkEventListener
 
     public function prePersistAccompanyingPeriodWork(AccompanyingPeriodWork $work): void
     {
-        if (null !== $this->security->getUser()) {
+        if ($this->security->getUser() instanceof User) {
             $work->addReferrer($this->security->getUser());
         }
     }