diff --git a/core/net/src/test/java/org/onosproject/net/device/impl/DeviceManagerTest.java b/core/net/src/test/java/org/onosproject/net/device/impl/DeviceManagerTest.java
index 4d8d2fc..7597e7c 100644
--- a/core/net/src/test/java/org/onosproject/net/device/impl/DeviceManagerTest.java
+++ b/core/net/src/test/java/org/onosproject/net/device/impl/DeviceManagerTest.java
@@ -32,6 +32,7 @@
 import org.onosproject.cluster.NodeId;
 import org.onosproject.event.Event;
 import org.onosproject.common.event.impl.TestEventDispatcher;
+import org.onosproject.incubator.net.config.NetworkConfigServiceAdapter;
 import org.onosproject.mastership.MastershipServiceAdapter;
 import org.onosproject.mastership.MastershipTerm;
 import org.onosproject.mastership.MastershipTermService;
@@ -115,8 +116,10 @@
         mgr.termService = mastershipManager;
         mgr.clusterService = new TestClusterService();
         mgr.deviceClockProviderService = new TestClockProviderService();
+        mgr.networkConfigService = new TestNetworkConfigService();
         mgr.activate();
 
+
         service.addListener(listener);
 
         provider = new TestProvider();
@@ -349,4 +352,7 @@
             return registerdBefore.contains(deviceId);
         }
     }
+
+    private class TestNetworkConfigService extends NetworkConfigServiceAdapter {
+    }
 }