diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index 787c7b8f8..64c0d873a 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -284,10 +284,6 @@ if ($w == '') {
     if ($mb_open_default != $mb_open)
         $sql_open_date =  " , mb_open_date = '".G4_TIME_YMD."' ";
 
-    $sql_sex = "";
-    if (isset($mb_sex))
-        $sql_sex = " , mb_sex = '{$mb_sex}' ";
-
     // 이전 메일주소와 수정한 메일주소가 틀리다면 인증을 다시 해야하므로 값을 삭제
     $sql_email_certify = '';
     if ($old_email != $mb_email && $config['cf_use_email_certify'])