diff --git a/admin_customers.php b/admin_customers.php
index 0b179d94..090b9ac5 100644
--- a/admin_customers.php
+++ b/admin_customers.php
@@ -892,7 +892,7 @@ if ($page == 'customers'
 							`domain` = :domain,
 							`customerid` = :customerid,
 							`adminid` = :adminid,
-							`parentdomainid` = '-1',
+							`parentdomainid` = '0',
 							`documentroot` = :docroot,
 							`zonefile` = '',
 							`isemaildomain` = '0',
@@ -1254,7 +1254,7 @@ if ($page == 'customers'
 							`domain` = :domain,
 							`customerid` = :customerid,
 							`adminid` = :adminid,
-							`parentdomainid` = '-1',
+							`parentdomainid` = '0',
 							`documentroot` = :docroot,
 							`zonefile` = '',
 							`isemaildomain` = '0',