diff -u b/core/modules/simpletest/simpletest.pages.inc b/core/modules/simpletest/simpletest.pages.inc
--- b/core/modules/simpletest/simpletest.pages.inc
+++ b/core/modules/simpletest/simpletest.pages.inc
@@ -434,6 +434,7 @@
  *
  * @ingroup forms
  * @see simpletest_settings_form_validate()
+ * @see simpletest_settings_form_submit()
  */
 function simpletest_settings_form($form, &$form_state) {
   $config = config('simpletest.settings');
@@ -497,8 +498,6 @@
 
 /**
  * Form submission handler for simpletest_settings_form().
- *
- * @ingroup forms
  */
 function simpletest_settings_form_submit($form, &$form_state) {
   config('simpletest.settings')