diff --git a/joker/src/components/DNS.vue b/joker/src/components/DNS.vue
index 60f7842..feea43a 100644
--- a/joker/src/components/DNS.vue
+++ b/joker/src/components/DNS.vue
@@ -110,7 +110,7 @@
                     });
             },
             validateHostname: function(host) {
-                if (/^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$/.test(host)) {
+                if (/^(([a-zA-Z0-9\*]|[a-zA-Z0-9\*][a-zA-Z0-9\*-]*[a-zA-Z0-9\*])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$/.test(host)) {
                     return true;
                 }