diff --git a/includes/form.inc b/includes/form.inc
index b19d33d..11370e7 100644
--- a/includes/form.inc
+++ b/includes/form.inc
@@ -41,7 +41,7 @@
  *
  * For information on the format of the structured arrays used to define forms,
  * and more detailed explanations of the Form API workflow, see the
- * @link http://api.drupal.org/api/file/developer/topics/forms_api_reference.html reference @endlink
+ * @link http://api.drupal.org/api/file/developer/topics/forms_api_reference.html/6 reference @endlink
  * and the @link http://api.drupal.org/api/file/developer/topics/forms_api.html quickstart guide. @endlink
  */