diff --git a/src/UnicaenValidation/Entity/Db/ValidationInstance.php b/src/UnicaenValidation/Entity/Db/ValidationInstance.php
index c1fe2f75bca33c83d7adf55499048e65689129e9..e06368d378c9691e25f515a3062a8cee828735ba 100755
--- a/src/UnicaenValidation/Entity/Db/ValidationInstance.php
+++ b/src/UnicaenValidation/Entity/Db/ValidationInstance.php
@@ -8,12 +8,12 @@ use UnicaenUtilisateur\Entity\Db\HistoriqueAwareTrait;
 class ValidationInstance implements HistoriqueAwareInterface {
     use HistoriqueAwareTrait;
 
-    private int $id;
+    private ?int $id = null;
     private ?ValidationType $type = null;
     private bool $refus = false;
     private ?string $justification = null;
     
-    public function getId() : int
+    public function getId() : ?int
     {
         return $this->id;
     }