diff --git a/lng/english.lng.php b/lng/english.lng.php
index e082bed7..6f57b24c 100644
--- a/lng/english.lng.php
+++ b/lng/english.lng.php
@@ -1602,4 +1602,4 @@ $lng['traffic']['months']['dec'] = 'Dec';
 $lng['traffic']['months']['total'] = 'Total';
 $lng['traffic']['details'] = 'Details';
 $lng['menue']['traffic']['table'] = 'Traffic';
-
+$lng['error']['admin_domain_emailsystemhostname'] = 'Sorry, the system - hostname may not be used as a customer domain';
diff --git a/lng/german.lng.php b/lng/german.lng.php
index 14f5c8d0..a1020ec9 100644
--- a/lng/german.lng.php
+++ b/lng/german.lng.php
@@ -1563,3 +1563,4 @@ $lng['serversettings']['validate_domain'] = 'Validiere Domainnamen';
 $lng['login']['combination_not_found'] = 'Kombination von Benutzer und E-Mail Adresse nicht gefunden.';
 $lng['customer']['generated_pwd'] = 'Passwortvorschlag';
 $lng['customer']['usedmax'] = 'Benutzt / Max.';
+$lng['error']['admin_domain_emailsystemhostname'] = 'Der System - Hostname kann leider nicht als Kundendomain verwendet werden.';