diff --git a/install/gnuboard4s.sql b/install/gnuboard4s.sql
index 9c031bb95..63d9d151e 100644
--- a/install/gnuboard4s.sql
+++ b/install/gnuboard4s.sql
@@ -266,6 +266,10 @@ CREATE TABLE IF NOT EXISTS `g4s_config` (
   `cf_privacy` text NOT NULL,
   `cf_open_modify` int(11) NOT NULL default '0',
   `cf_memo_send_point` int(11) NOT NULL default '0',
+  `cf_mobile_new_skin` varchar(255) NOT NULL default'',
+  `cf_mobile_search_skin` varchar(255) NOT NULL default'',
+  `cf_mobile_connect_skin` varchar(255) NOT NULL default'',
+  `cf_mobile_member_skin` varchar(255) NOT NULL default'',
   `cf_kcpcert_site_cd` varchar(255) NOT NULL default '',
   `cf_adult_check` tinyint(4) NOT NULL default '0',
   `cf_1_subj` varchar(255) NOT NULL default '',
diff --git a/install/install_db.php b/install/install_db.php
index 93a7443a6..e10f74406 100644
--- a/install/install_db.php
+++ b/install/install_db.php
@@ -97,6 +97,10 @@ $sql = " insert into `{$table_prefix}config`
                 cf_possible_ip = '',
                 cf_intercept_ip = '',
                 cf_member_skin = 'basic',
+                cf_mobile_new_skin = 'basic',
+                cf_mobile_search_skin = 'basic',
+                cf_mobile_connect_skin = 'basic',
+                cf_mobile_member_skin = 'basic',
                 cf_register_level = '2',
                 cf_register_point = '1000',
                 cf_icon_level = '2',