diff -u b/core/modules/contact/contact.module b/core/modules/contact/contact.module
--- b/core/modules/contact/contact.module
+++ b/core/modules/contact/contact.module
@@ -261,9 +261,9 @@
 }
 
 /**
- * Form builder submit handler; Handle submission for user contact default.
+ * Form submission handler for user_admin_settings().
  *
- * @ingroup forms
+ * @see contact_form_user_admin_settings_alter()
  */
 function contact_form_user_admin_settings_submit($form, &$form_state) {
   config('contact.settings')