diff --git a/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php b/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php
index c9b11ea71..95ab71d4b 100644
--- a/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php
+++ b/src/Bundle/ChillPersonBundle/EventListener/AccompanyingPeriodWorkEventListener.php
@@ -25,6 +25,8 @@ class AccompanyingPeriodWorkEventListener
 
     public function prePersistAccompanyingPeriodWork(AccompanyingPeriodWork $work): void
     {
-        $work->addReferrer($this->security->getUser());
+        if (null !== $this->security->getUser()) {
+            $work->addReferrer($this->security->getUser());
+        }
     }
 }