diff --git a/install/gnuboard5.sql b/install/gnuboard5.sql
index a3add4f4e..f4445ccfe 100644
--- a/install/gnuboard5.sql
+++ b/install/gnuboard5.sql
@@ -463,7 +463,8 @@ CREATE TABLE IF NOT EXISTS `g5_member` (
   `mb_ip` varchar(255) NOT NULL default '',
   `mb_leave_date` varchar(8) NOT NULL default '',
   `mb_intercept_date` varchar(8) NOT NULL default '',
-  `mb_email_certify` datetime NOT NULL default '0000-00-00 00:00:00',  
+  `mb_email_certify` datetime NOT NULL default '0000-00-00 00:00:00',
+  `mb_email_certify2` varchar(255) NOT NULL default '',
   `mb_memo` text NOT NULL,
   `mb_lost_certify` varchar(255) NOT NULL,
   `mb_mailling` tinyint(4) NOT NULL default '0',