diff --git a/src/Manager/DoctrineUserManager.php b/src/Manager/DoctrineUserManager.php
index fbcca0b..01b95b3 100644
--- a/src/Manager/DoctrineUserManager.php
+++ b/src/Manager/DoctrineUserManager.php
@@ -65,6 +65,7 @@ public function get(string $class, string $id)
      */
     public function getClass($user): string
     {
+        /** @var object $user */
         /** @var class-string $class */
         $class = ClassUtils::getClass($user);