diff --git a/adm/member_form_update.php b/adm/member_form_update.php
index 2941aa415..588a8dd01 100644
--- a/adm/member_form_update.php
+++ b/adm/member_form_update.php
@@ -43,7 +43,6 @@ $sql_common = "  mb_name = '{$_POST['mb_name']}',
                  mb_addr2 = '{$_POST['mb_addr2']}',
                  mb_addr3 = '{$_POST['mb_addr3']}',
                  mb_addr_jibeon = '{$_POST['mb_addr_jibeon']}',
-                 mb_birth = '{$_POST['mb_birth']}',
                  mb_sex = '{$_POST['mb_sex']}',
                  mb_signature = '{$_POST['mb_signature']}',
                  mb_leave_date = '{$_POST['mb_leave_date']}',