diff --git a/install/tpl/system.ini.master b/install/tpl/system.ini.master
index bbd78e6b3a93066d81d63058cd96917726b9453e..f15aa851af67013db29bed354f77b1b4152df72e 100644
--- a/install/tpl/system.ini.master
+++ b/install/tpl/system.ini.master
@@ -20,8 +20,8 @@ smtp_host=localhost
 [monitor]
 
 [sites]
-dbname_prefix=c[CLIENTID]
-dbuser_prefix=c[CLIENTID]
+dbname_prefix=c[CLIENTID]_
+dbuser_prefix=c[CLIENTID]_
 ftpuser_prefix=[CLIENTNAME]
 shelluser_prefix=[CLIENTNAME]
 webdavuser_prefix=[CLIENTNAME]