diff --git a/core/themes/classy/classy.libraries.yml b/core/themes/classy/classy.libraries.yml
index afe3538..3c70848 100644
--- a/core/themes/classy/classy.libraries.yml
+++ b/core/themes/classy/classy.libraries.yml
@@ -4,7 +4,7 @@ base:
     theme:
       css/layout.css: {}
 
-comment-threaded:
+drupal.comment.threaded:
   version: VERSION
   css:
     theme:
diff --git a/core/themes/classy/templates/content/comment.html.twig b/core/themes/classy/templates/content/comment.html.twig
index 1044364..1decd44 100644
--- a/core/themes/classy/templates/content/comment.html.twig
+++ b/core/themes/classy/templates/content/comment.html.twig
@@ -63,7 +63,7 @@
  * @see template_preprocess_comment()
  */
 #}
-{{ attach_library('classy/comment-threaded') }}
+{{ attach_library('classy/drupal.comment.threaded') }}
 {%
   set classes = [
     'comment',