diff --git a/bbs/register_form.php b/bbs/register_form.php
index aa45e13a9..0e742ceb7 100644
--- a/bbs/register_form.php
+++ b/bbs/register_form.php
@@ -143,9 +143,9 @@ $register_action_url = G5_HTTPS_BBS_URL.'/register_form_update.php';
 $req_nick = !isset($member['mb_nick_date']) || (isset($member['mb_nick_date']) && $member['mb_nick_date'] <= date("Y-m-d", G5_SERVER_TIME - ($config['cf_nick_modify'] * 86400)));
 $required = ($w=='') ? 'required' : '';
 $readonly = ($w=='u') ? 'readonly' : '';
-$name_readonly = ($w=='u' || $config['cf_cert_req'])? 'readonly' : '';
-$hp_required = ($config['cf_req_hp'] || ($config['cf_cert_req'] && ($config['cf_cert_hp'] || $config['cf_cert_sa']) && $member['mb_certify'] != "ipin")) ? 'required':'';
-$hp_readonly = ($config['cf_cert_req'] && ($config['cf_cert_hp'] || $config['cf_cert_sa']) && $member['mb_certify'] != "ipin") ? 'readonly':'';
+$name_readonly = ($w=='u' || ($config['cf_cert_use'] && $config['cf_cert_req']))? 'readonly' : '';
+$hp_required = ($config['cf_req_hp'] || (($config['cf_cert_use'] && $config['cf_cert_req']) && ($config['cf_cert_hp'] || $config['cf_cert_sa']) && $member['mb_certify'] != "ipin")) ? 'required':'';
+$hp_readonly = (($config['cf_cert_use'] && $config['cf_cert_req']) && ($config['cf_cert_hp'] || $config['cf_cert_sa']) && $member['mb_certify'] != "ipin") ? 'readonly':'';
 
 $agree  = isset($_REQUEST['agree']) ? preg_replace('#[^0-9]#', '', $_REQUEST['agree']) : '';
 $agree2 = isset($_REQUEST['agree2']) ? preg_replace('#[^0-9]#', '', $_REQUEST['agree2']) : '';