diff --git a/src/Helpers/MenuLoader.php b/src/Helpers/MenuLoader.php
index 253faba..ca80678 100644
--- a/src/Helpers/MenuLoader.php
+++ b/src/Helpers/MenuLoader.php
@@ -66,7 +66,7 @@ class MenuLoader {
             $thumbNailValue = $thumbNail->getValue()[0];
             $imageFile = File::load($thumbNailValue['target_id']);
             if ($imageFile) {
-              $menuItem['thumbnail_url'] = file_url_transform_relative($imageFile->Url());
+              $menuItem['thumbnail_url'] = file_url_transform_relative($imageFile->toUrl()->toString());
             }
           }
           if ($entity->hasField('icon')) {