diff --git a/apps/vpls/src/test/java/org/onosproject/vpls/VplsTest.java b/apps/vpls/src/test/java/org/onosproject/vpls/VplsTest.java
index dae4086..b6323c7 100644
--- a/apps/vpls/src/test/java/org/onosproject/vpls/VplsTest.java
+++ b/apps/vpls/src/test/java/org/onosproject/vpls/VplsTest.java
@@ -234,7 +234,7 @@
      * @return the mac address
      */
     protected static MacAddress getMac(int n) {
-        return MacAddress.valueOf(String.format("00:00:00:00:00:%s", n));
+        return MacAddress.valueOf(String.format("00:00:00:00:00:%02x", n));
     }
 
     /**