diff --git a/core/modules/comment/lib/Drupal/comment/Form/DeleteForm.php b/core/modules/comment/lib/Drupal/comment/Form/DeleteForm.php
index 43c843b..1775513 100644
--- a/core/modules/comment/lib/Drupal/comment/Form/DeleteForm.php
+++ b/core/modules/comment/lib/Drupal/comment/Form/DeleteForm.php
@@ -26,6 +26,7 @@ public function getQuestion() {
    * {@inheritdoc}
    */
   public function getCancelRoute() {
+    // Point to the entity of which this comment is a reply.
     return $this->entity->get('entity_id')->entity->urlInfo();
   }