diff --git a/src/table/settings/old_gameopt_settings.ini b/src/table/settings/old_gameopt_settings.ini
--- a/src/table/settings/old_gameopt_settings.ini
+++ b/src/table/settings/old_gameopt_settings.ini
@@ -32,6 +32,7 @@ static const SettingVariant _old_gameopt
 [templates]
 SDTG_LIST    =  SDTG_LIST($name,              $type, $flags, $var, $def, $length, $from, $to, $cat, $extra, $startup),
 SDTG_VAR     =   SDTG_VAR($name,              $type, $flags, $var, $def, $min, $max, $interval,  $str, $strhelp, $strval, $pre_cb, $post_cb, $str_cb, $help_cb, $val_cb, $from, $to, $cat, $extra, $startup),
+SDT_NULL     =   SDT_NULL(                                                          $length,                                                            $from, $to),
 SDTC_OMANY   = SDTC_OMANY(              $var, $type, $flags, $def,       $max, $full,            $str, $strhelp, $strval, $pre_cb, $post_cb, $str_cb, $help_cb, $val_cb, $from, $to,        $cat, $extra, $startup),
 SDTG_OMANY   = SDTG_OMANY($name,              $type, $flags, $var, $def, $max, $full,            $str, $strhelp, $strval, $pre_cb, $post_cb, $str_cb, $help_cb, $val_cb, $from, $to,        $cat, $extra, $startup),
 SDT_OMANY    =  SDT_OMANY(GameSettings, $var, $type, $flags, $def,       $max, $full,            $str, $strhelp, $strval, $pre_cb, $post_cb, $str_cb, $help_cb, $val_cb, $from, $to, $load, $cat, $extra, $startup),