diff --git a/install/sql/incremental/upd_0073.sql b/install/sql/incremental/upd_0073.sql
index 3dcbc366a76b7a0f10afacdee33176fe6a61b8af..3ed9a5d9294eecc3cbd17e28d5b3c915e92c848b 100644
--- a/install/sql/incremental/upd_0073.sql
+++ b/install/sql/incremental/upd_0073.sql
@@ -1,3 +1,4 @@
 ALTER TABLE `client_template` ADD `limit_backup` ENUM( 'n', 'y' ) NOT NULL DEFAULT 'y' AFTER `limit_webdav_user`;
 ALTER TABLE `client` ADD `limit_backup` ENUM( 'n', 'y' ) NOT NULL DEFAULT 'y' AFTER `limit_webdav_user`;
 ALTER TABLE  `web_domain` CHANGE  `php_fpm_use_socket`  `php_fpm_use_socket` ENUM(  'n',  'y' ) NOT NULL DEFAULT  'y';
+ALTER TABLE `mail_domain` ADD `dkim_selector` VARCHAR(63) NOT NULL DEFAULT 'default' AFTER `dkim`;
diff --git a/install/sql/ispconfig3.sql b/install/sql/ispconfig3.sql
index 72ec00c7786306777eddf05ff77b6de47571e572..28815258cf083cea9d58119b84e29aabd8688f83 100644
--- a/install/sql/ispconfig3.sql
+++ b/install/sql/ispconfig3.sql
@@ -742,6 +742,7 @@ CREATE TABLE `mail_domain` (
   `server_id` int(11) unsigned NOT NULL default '0',
   `domain` varchar(255) NOT NULL default '',
   `dkim` ENUM( 'n', 'y' ) NOT NULL default 'n',
+  `dkim_selector` varchar(63) NOT NULL DEFAULT 'default',
   `dkim_private` mediumtext NULL,
   `dkim_public` mediumtext NULL,
   `active` enum('n','y') NOT NULL,