diff --git a/src/Entity/User.php b/src/Entity/User.php
index 25b9f4dd..867cbf7d 100644
--- a/src/Entity/User.php
+++ b/src/Entity/User.php
@@ -10,4 +10,9 @@
 final class User implements UserEntityInterface
 {
     use EntityTrait;
+
+    public function __construct()
+    {
+        $this->identifier = '';
+    }
 }