diff --git a/apps/t3/app/src/main/java/org/onosproject/t3/api/MastershipNib.java b/apps/t3/app/src/main/java/org/onosproject/t3/api/MastershipNib.java
index 5101d52..733c590 100644
--- a/apps/t3/app/src/main/java/org/onosproject/t3/api/MastershipNib.java
+++ b/apps/t3/app/src/main/java/org/onosproject/t3/api/MastershipNib.java
@@ -27,7 +27,7 @@
  * and supports alternative functions to
  * {@link org.onosproject.mastership.MastershipService} for offline data.
  */
-public class MastershipNib {
+public class MastershipNib extends AbstractNib {
 
     private Map<DeviceId, NodeId> deviceMasterMap;