diff --git a/providers/openflow/link/src/test/java/org/onlab/onos/provider/of/link/impl/OpenFlowLinkProviderTest.java b/providers/openflow/link/src/test/java/org/onlab/onos/provider/of/link/impl/OpenFlowLinkProviderTest.java
index 7fca158..a6c6930 100644
--- a/providers/openflow/link/src/test/java/org/onlab/onos/provider/of/link/impl/OpenFlowLinkProviderTest.java
+++ b/providers/openflow/link/src/test/java/org/onlab/onos/provider/of/link/impl/OpenFlowLinkProviderTest.java
@@ -467,5 +467,10 @@
         public void returnRoleAssertFailure(RoleState role) {
         }
 
+        @Override
+        public boolean isOptical() {
+            return false;
+        }
+
     }
 }