diff --git a/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php b/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php
index f060c4bfb..a1df7ca55 100644
--- a/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php
+++ b/src/Bundle/ChillThirdPartyBundle/Entity/ThirdParty.php
@@ -767,9 +767,9 @@ class ThirdParty implements TrackCreationInterface, TrackUpdateInterface
         return $this;
     }
 
-    public function setFirstname(string $firstname): self
+    public function setFirstname(?string $firstname): self
     {
-        $this->firstname = $firstname;
+        $this->firstname = trim((string) $firstname);
 
         return $this;
     }
@@ -781,9 +781,9 @@ class ThirdParty implements TrackCreationInterface, TrackUpdateInterface
         return $this;
     }
 
-    public function setName($name): self
+    public function setName(?string $name): self
     {
-        $this->name = $name;
+        $this->name = (string) $name;
 
         return $this;
     }