diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index c3a9bc7..ece676a 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -610,8 +610,8 @@ function comment_add(EntityInterface $entity, $field_name = 'comment', $pid = NU
  *   which returns objects instead of IDs.
  */
 function comment_get_thread(EntityInterface $entity, $field_name, $mode, $comments_per_page, $pager_id = 0) {
-  $nodes = \Drupal::entityManager()->getStorage('comment')->loadThread($entity, $field_name, $mode, $comments_per_page, $pager_id);
-  return array_keys($nodes);
+  $comments = \Drupal::entityManager()->getStorage('comment')->loadThread($entity, $field_name, $mode, $comments_per_page, $pager_id);
+  return array_keys($comments);
 }
 
 /**