diff --git a/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php b/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
index d15340a..9e30949 100644
--- a/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
+++ b/core/lib/Drupal/Core/Utility/UnroutedUrlAssembler.php
@@ -11,6 +11,7 @@
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\GeneratedUrl;
 use Drupal\Core\PathProcessor\OutboundPathProcessorInterface;
+use Drupal\Core\Url;
 use Symfony\Component\HttpFoundation\RequestStack;
 
 /**