diff --git a/core/service.go b/core/service.go
index 40e5a23..106e88f 100644
--- a/core/service.go
+++ b/core/service.go
@@ -209,6 +209,10 @@ func (sh *serviceDescription) prepare(mg *Maingate) error {
 		sh.ServiceCode = hex.EncodeToString(sh.Id[6:])
 	}
 
+	if *noauth {
+		sh.ServiceCode = "000000000000"
+	}
+
 	divsForUsers := make(map[string]*DivisionForUser)
 	for dn, div := range divs {
 		if div.State == DivisionState_Closed {