diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/ClusterMessagingProtocol.java b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/ClusterMessagingProtocol.java
index 6de66bc..c561221 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/ClusterMessagingProtocol.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/ClusterMessagingProtocol.java
@@ -64,7 +64,8 @@
  */
 @Component(immediate = true)
 @Service
-public class ClusterMessagingProtocol implements Protocol<TcpMember> {
+public class ClusterMessagingProtocol
+    implements DatabaseProtocolService, Protocol<TcpMember> {
 
     private final Logger log = getLogger(getClass());