diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
index 2c7ca1099..f61955e1d 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
@@ -167,7 +167,7 @@ class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doct
     /**
      * @return DateTimeImmutable|null
      */
-    public function getUpdatedAt(): ?DateTimeInterface
+    public function getUpdatedAt(): ?\DateTimeInterface
     {
         return $this->updatedAt;
     }