diff --git a/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php b/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php
index 42d2731ea8d3ec881dfb052d20aea0643aa2b59a..e2f4ca7d1fdfebd3033b80f57febe38df725bc52 100644
--- a/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php
+++ b/core/modules/system/src/Tests/Menu/AssertBreadcrumbTrait.php
@@ -70,8 +70,8 @@ protected function assertBreadcrumbParts($trail) {
     while ($trail && !empty($parts)) {
       foreach ($trail as $path => $title) {
         // If the path is empty, generate the path from the <front> route.  If
-        // the path does not start with a leading, then run it through
-        // Url::fromUri('base:')->toString() to get correct the base
+        // the path does not start with a leading slash, then run it through
+        // Url::fromUri('base:')->toString() to get the correct base
         // prepended.
         if ($path == '') {
           $url = Url::fromRoute('<front>')->toString();