diff --git a/core/modules/comment/comment.install b/core/modules/comment/comment.install
index 373a4eb631..7c872bcf7e 100644
--- a/core/modules/comment/comment.install
+++ b/core/modules/comment/comment.install
@@ -220,3 +220,14 @@ function comment_update_8700() {
   $definition_update_manager->updateEntityType($entity_type);
   $definition_update_manager->updateFieldStorageDefinition($definition_update_manager->getFieldStorageDefinition('uid', 'comment'));
 }
+
+/**
+ * Add form heading to comment types.
+ */
+function comment_update_8701() {
+  $config_factory = \Drupal::configFactory();
+  foreach ($config_factory->listAll('comment.type.') as $type_name) {
+    $type = $config_factory->getEditable($type_name);
+    $type->set('form_heading', 'Add new comment')->save(TRUE);
+  }
+}