diff --git a/src/Fast404.php b/src/Fast404.php
index 0939279bcb6f0f6698804e0480c48845e60ed1e1..1629cdaf891704c64102063400f669bfdf738f2a 100644
--- a/src/Fast404.php
+++ b/src/Fast404.php
@@ -2,10 +2,11 @@
 
 namespace Drupal\fast404;
 
-use Drupal\Core\Site\Settings;
+use Drupal\Component\Render\FormattableMarkup;
+use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Database\Database;
+use Drupal\Core\Site\Settings;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
-use Drupal\Component\Render\FormattableMarkup;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException;
@@ -211,7 +212,7 @@ class Fast404 {
       return $response;
     }
     $response->send();
-    throw new ServiceUnavailableHttpException(3, 'The requested URL "@path" was not found on this server. Try again shortly.', ['@path' => $this->request->getPathInfo()]);
+    throw new ServiceUnavailableHttpException(3, 'The requested URL "' . UrlHelper::stripDangerousProtocols($this->request->getPathInfo()) . '" was not found on this server. Try again shortly.');
   }
 
   /**