diff --git a/src/Resources/skeleton/doctrine/Repository.tpl.php b/src/Resources/skeleton/doctrine/Repository.tpl.php
index 09fd7c85f..7457915b8 100644
--- a/src/Resources/skeleton/doctrine/Repository.tpl.php
+++ b/src/Resources/skeleton/doctrine/Repository.tpl.php
@@ -28,7 +28,7 @@ public function __construct(ManagerRegistry $registry)
      */
     public function upgradePassword(UserInterface $user, string $newEncodedPassword): void
     {
-        if (!$user instanceof User) {
+        if (!$user instanceof <?= $entity_class_name ?>) {
             throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', \get_class($user)));
         }