diff --git a/core/api/src/test/java/org/onosproject/net/TestDeviceParams.java b/core/api/src/test/java/org/onosproject/net/TestDeviceParams.java
index 8116f05..2de364a 100644
--- a/core/api/src/test/java/org/onosproject/net/TestDeviceParams.java
+++ b/core/api/src/test/java/org/onosproject/net/TestDeviceParams.java
@@ -37,6 +37,7 @@
     protected static final DeviceId DID2 = deviceId("of:bar");
     protected static final DeviceId DID3 = deviceId("of:who");
     protected static final DeviceId DID4 = deviceId("of:what");
+    protected static final DeviceId DID5 = deviceId("of:when");
     protected static final MacAddress MAC1 = MacAddress.valueOf("00:11:00:00:00:01");
     protected static final MacAddress MAC2 = MacAddress.valueOf("00:22:00:00:00:02");
     protected static final VlanId VLAN1 = VlanId.vlanId((short) 11);