diff --git a/templates/Entity/_content-entity/src/ExampleAccessControlHandler.php.twig b/templates/Entity/_content-entity/src/ExampleAccessControlHandler.php.twig
index 691ece9d..a21f159a 100644
--- a/templates/Entity/_content-entity/src/ExampleAccessControlHandler.php.twig
+++ b/templates/Entity/_content-entity/src/ExampleAccessControlHandler.php.twig
@@ -22,7 +22,8 @@ final class {{ class }}AccessControlHandler extends EntityAccessControlHandler {
    * {@inheritdoc}
    */
   protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account): AccessResult {
-    if ($account->hasPermission($this->entityType->getAdminPermission())) {
+    $permission = $this->entityType->getAdminPermission();
+    if (is_string($permission) && $account->hasPermission($permission)) {
       return AccessResult::allowed()->cachePerPermissions();
     }