diff --git a/apps/optical/src/main/java/org/onlab/onos/optical/cfg/OpticalConfigProvider.java b/apps/optical/src/main/java/org/onlab/onos/optical/cfg/OpticalConfigProvider.java
index 5c9de15..4b9bc9f 100644
--- a/apps/optical/src/main/java/org/onlab/onos/optical/cfg/OpticalConfigProvider.java
+++ b/apps/optical/src/main/java/org/onlab/onos/optical/cfg/OpticalConfigProvider.java
@@ -368,12 +368,12 @@
     }
 
     @Override
-    public void roleChanged(Device device, MastershipRole newRole) {
+    public void roleChanged(DeviceId device, MastershipRole newRole) {
         // TODO Auto-generated method stub.
     }
 
     @Override
-    public boolean isReachable(Device device) {
+    public boolean isReachable(DeviceId device) {
         return false;
     }
 }