diff --git a/core/api/src/test/java/org/onlab/onos/net/device/DeviceEventTest.java b/core/api/src/test/java/org/onlab/onos/net/device/DeviceEventTest.java
index 7175308..df19365 100644
--- a/core/api/src/test/java/org/onlab/onos/net/device/DeviceEventTest.java
+++ b/core/api/src/test/java/org/onlab/onos/net/device/DeviceEventTest.java
@@ -18,7 +18,7 @@
 public class DeviceEventTest extends AbstractEventTest {
 
     private Device createDevice() {
-        return new DefaultDevice(new ProviderId("foo"), deviceId("of:foo"),
+        return new DefaultDevice(new ProviderId("of", "foo"), deviceId("of:foo"),
                 Device.Type.SWITCH, "box", "hw", "sw", "sn");
     }