diff --git a/core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php b/core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php
index 616b22d68b..9da38dfcbf 100644
--- a/core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php
+++ b/core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php
@@ -119,7 +119,7 @@ public function generateFromRoute($name, $parameters = [], $options = [], $colle
    *   TRUE if the passed in value a valid route, FALSE otherwise.
    *
    * @deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. Only string
-   * route names are supported.
+   *   route names are supported.
    *
    * @see https://www.drupal.org/node/3172303
    */
@@ -140,7 +140,7 @@ public function supports($name) {
    *   Either the route name, or a string that uniquely identifies the route.
    *
    * @deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. Use
-   * the route name instead.
+   *   the route name instead.
    *
    * @see https://www.drupal.org/node/3172303
    */