diff --git a/modules/system/system.module b/modules/system/system.module
index 152433590d94..c1c28e88ef47 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -1355,6 +1355,8 @@ function _system_settings_form_automatic_defaults($form) {
  * @see system_settings_form_submit()
  * @param $form
  *   An associative array containing the structure of the form.
+ * @param $automatic_defaults
+ *   Automatically load the saved values for each field from the system variables (defaults to TRUE).
  * @return
  *   The form structure.
  */