diff --git a/io/mdns/mdns.html b/io/mdns/mdns.html
index de75ef19..7c7ffb99 100644
--- a/io/mdns/mdns.html
+++ b/io/mdns/mdns.html
@@ -37,7 +37,7 @@
         defaults: {
             name: {value:""},
             topic: {value:""},
-            service: {value:"",required:true,validate:RED.validators.regex(/^_.*\._(tc|ud)p$/)}
+            service: {value:"",validate:RED.validators.regex(/^$|^_.*\._(tc|ud)p$/)} // (/^(\d*|)$/)
         },
         inputs:0,
         outputs:1,
diff --git a/io/mdns/package.json b/io/mdns/package.json
index b9400a1a..ba7960e0 100644
--- a/io/mdns/package.json
+++ b/io/mdns/package.json
@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-discovery",
-    "version"       : "0.0.22",
+    "version"       : "0.0.23",
     "description"   : "A Node-RED node that uses Bonjour / Avahi to discover nearby services.",
     "dependencies"  : {
         "mdns"   : "^2.5.1"