diff --git a/pkg/compute/models/guests.go b/pkg/compute/models/guests.go
index f9fd73a84a..bc03552a2f 100644
--- a/pkg/compute/models/guests.go
+++ b/pkg/compute/models/guests.go
@@ -1490,7 +1490,11 @@ func (manager *SGuestManager) validateCreateData(
 	if err != nil {
 		return nil, err
 	}
-	input.HostnameInput, err = manager.SHostnameResourceBaseManager.ValidateHostname(input.Name, input.OsType, input.HostnameInput)
+	name := input.Name
+	if len(name) == 0 {
+		name = input.GenerateName
+	}
+	input.HostnameInput, err = manager.SHostnameResourceBaseManager.ValidateHostname(name, input.OsType, input.HostnameInput)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/compute/models/hosts.go b/pkg/compute/models/hosts.go
index 832ea66f29..443cc097a5 100644
--- a/pkg/compute/models/hosts.go
+++ b/pkg/compute/models/hosts.go
@@ -3413,7 +3413,11 @@ func (manager *SHostManager) ValidateCreateData(
 	if err != nil {
 		return input, errors.Wrap(err, "SEnabledStatusInfrasResourceBaseManager.ValidateCreateData")
 	}
-	input.HostnameInput, err = manager.SHostnameResourceBaseManager.ValidateHostname(input.Name, "", input.HostnameInput)
+	name := input.Name
+	if len(name) == 0 {
+		name = input.GenerateName
+	}
+	input.HostnameInput, err = manager.SHostnameResourceBaseManager.ValidateHostname(name, "", input.HostnameInput)
 	if err != nil {
 		return input, err
 	}