diff --git a/core/modules/system/templates/feed-icon.html.twig b/core/modules/system/templates/feed-icon.html.twig
index 7c68199..b2d77a6 100644
--- a/core/modules/system/templates/feed-icon.html.twig
+++ b/core/modules/system/templates/feed-icon.html.twig
@@ -8,7 +8,7 @@
  * - icon: The rendered HTML (<img> tag) for the feed icon image.
  * - attributes: Remaining HTML attributes for the feed link.
  * - attributes.title: A descriptive title of the feed link.
- * - attributes.class: HTML Classes to be applied to the feed link.
+ * - attributes.class: HTML classes to be applied to the feed link.
  *
  * @see template_preprocess()
  * @see template_preprocess_feed_icon()