diff -u b/core/modules/comment/comment-entity-form.js b/core/modules/comment/comment-entity-form.js
--- b/core/modules/comment/comment-entity-form.js
+++ b/core/modules/comment/comment-entity-form.js
@@ -14,13 +14,14 @@
   Drupal.behaviors.commentFieldsetSummaries = {
     attach: function (context) {
       var $context = $(context);
-       $context.find('.js-comment-settings-form').drupalSetSummary(function (context) {
-         var widgetSelector = $(context).data('comment-widget-selector');
-         return $context
-           .find('[data-drupal-selector="' + widgetSelector + '"]')
-           .find('input:checked')
-           .next('label')
-           .text();      });
+      $context.find('.js-comment-settings-form').drupalSetSummary(function (context) {
+        var widgetSelector = $(context).data('comment-widget-selector');
+        return $context
+          .find('[data-drupal-selector="' + widgetSelector + '"]')
+          .find('input:checked')
+          .next('label')
+          .text();
+        });
     }
   };