diff --git a/src/ts/components/Utils.tsx b/src/ts/components/Utils.tsx
index 1f1aa03..8129a91 100644
--- a/src/ts/components/Utils.tsx
+++ b/src/ts/components/Utils.tsx
@@ -15,4 +15,24 @@ export function sec2date(ms: number) {
     return dateTime.toLocaleString();
 }
 
+function numHex(s: number) {
+    var a = s.toString(16);
+    if ((a.length % 2) > 0) { a = "0" + a; }
+    return a;
+}
+
+export function intToMac(macInt: number): string {
+
+    var hexValue = numHex(macInt);
+
+    var macaddress = [];
+
+    for (var i = 0; i < hexValue.length; i = i + 2) {
+        macaddress.push(hexValue.substr(i, 2));
+    }
+
+
+    return macaddress.join(':');
+}
+
 
diff --git a/src/ts/containers/discovery/DiscoveryResult.tsx b/src/ts/containers/discovery/DiscoveryResult.tsx
index 060c7a9..72d8bba 100644
--- a/src/ts/containers/discovery/DiscoveryResult.tsx
+++ b/src/ts/containers/discovery/DiscoveryResult.tsx
@@ -152,7 +152,7 @@ export class DiscoveryResult extends React.Component<any, any> {
           IP : {Utils.int2ip(this.state.result.zone.ip)}/{this.state.result.zone.mask}
         </div>
         <div>
-          MacAddress : {this.state.result.zone.mac}
+          MacAddress : {Utils.intToMac(this.state.result.zone.mac)}
         </div>
 
         <div style={{ margin: 20 }} > Targets </div>