diff --git a/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php b/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php
index b13118168..29565e86a 100644
--- a/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php
+++ b/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php
@@ -807,10 +807,10 @@ class ThirdParty implements TrackCreationInterface, TrackUpdateInterface
 
     /**
      * @return $this
-     */
-    public function setProfession(string $profession): self
+     */""
+    public function setProfession(?string $profession): self
     {
-        $this->profession = $profession;
+        $this->profession = (string) $profession;
 
         return $this;
     }