diff --git a/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php b/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php
index 51fcf29..7c54770 100644
--- a/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php
+++ b/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php
@@ -71,7 +71,7 @@ protected function assertBreadcrumbParts($trail) {
       foreach ($trail as $path => $title) {
         // If the path is empty or does not start with a leading /, assume it
         // is an internal path that needs to be passed through _url().
-        $url = $path == '' || $path[0] != '/' ? Url::fromUri('base://' . $path)->toString($path) : $path;
+        $url = $path == '' || $path[0] != '/' ? Url::fromUri('base://' . $path)->toString() : $path;
         $part = array_shift($parts);
         $pass = ($pass && $part['href'] === $url && $part['text'] === String::checkPlain($title));
       }