diff --git a/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZClient.java b/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZClient.java
index 4cc68b4..32ff15b 100644
--- a/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZClient.java
+++ b/src/main/java/net/onrc/onos/core/datastore/hazelcast/HZClient.java
@@ -30,7 +30,7 @@
 import com.hazelcast.core.HazelcastInstance;
 import com.hazelcast.core.IMap;
 
-public class HZClient implements IKVClient {
+public final class HZClient implements IKVClient {
     private static final Logger log = LoggerFactory.getLogger(HZClient.class);
 
     static final long VERSION_NONEXISTENT = 0L;