diff --git a/lng/english.lng.php b/lng/english.lng.php
index 130fd0c3..cbf6c141 100644
--- a/lng/english.lng.php
+++ b/lng/english.lng.php
@@ -397,7 +397,7 @@ $lng['error']['myipaddress'] = '\'IP\'';
 $lng['error']['myport'] = '\'Port\'';
 $lng['error']['myipdefault'] = 'You need to select an IP/Port combination that should become default.';
 $lng['error']['myipnotdouble'] = 'This IP/Port combination already exists.';
-$lng['error']['admin_domain_emailsystemhostname'] = 'The server-hostname cannot be used as email-domain.';
+$lng['error']['admin_domain_emailsystemhostname'] = 'The server-hostname cannot be used as customer-domain.';
 $lng['question']['admin_ip_reallydelete'] = 'Do you really want to delete the IP address %s?';
 $lng['admin']['ipsandports']['ipsandports'] = 'IPs and Ports';
 $lng['admin']['ipsandports']['add'] = 'Add IP/Port';