diff --git a/apis/management.cattle.io/v3/globaldns_types.go b/apis/management.cattle.io/v3/globaldns_types.go
index 16fa9e12..2d9399da 100644
--- a/apis/management.cattle.io/v3/globaldns_types.go
+++ b/apis/management.cattle.io/v3/globaldns_types.go
@@ -18,7 +18,7 @@ type GlobalDNS struct {
 }
 
 type GlobalDNSSpec struct {
-	FQDN                string   `json:"fqdn,omitempty" norman:"required"`
+	FQDN                string   `json:"fqdn,omitempty" norman:"type=hostname,required"`
 	TTL                 int64    `json:"ttl,omitempty" norman:"default=300"`
 	ProjectNames        []string `json:"projectNames" norman:"type=array[reference[project]],noupdate"`
 	MultiClusterAppName string   `json:"multiClusterAppName,omitempty" norman:"type=reference[multiClusterApp]"`