diff --git a/install/tpl/mysql-virtual_domains.cf.master b/install/tpl/mysql-virtual_domains.cf.master
index baecb069adeb8d0e1f1bfbb71a786ce761475bfd..984908e16d220997ec5e7af3c292ae1e26648286 100644
--- a/install/tpl/mysql-virtual_domains.cf.master
+++ b/install/tpl/mysql-virtual_domains.cf.master
@@ -2,7 +2,7 @@ user = {mysql_server_ispconfig_user}
 password = {mysql_server_ispconfig_password}
 dbname = {mysql_server_database}
 table = mail_domain
-select_field = 'domain'
+select_field = domain
 where_field = domain
 additional_conditions = and server_id = {server_id}
 hosts = {mysql_server_ip}
\ No newline at end of file