diff --git a/core/api/src/test/java/org/onlab/onos/net/DefaultPortTest.java b/core/api/src/test/java/org/onlab/onos/net/DefaultPortTest.java
index e9d3da6..1069fd1 100644
--- a/core/api/src/test/java/org/onlab/onos/net/DefaultPortTest.java
+++ b/core/api/src/test/java/org/onlab/onos/net/DefaultPortTest.java
@@ -14,7 +14,7 @@
  */
 public class DefaultPortTest {
 
-    private static final ProviderId PID = new ProviderId("foo");
+    private static final ProviderId PID = new ProviderId("of", "foo");
     private static final DeviceId DID1 = deviceId("of:foo");
     private static final DeviceId DID2 = deviceId("of:bar");
     private static final PortNumber P1 = portNumber(1);