diff --git a/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/KryoNamespaces.java b/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/KryoNamespaces.java
index 07db4a6..7043a61 100644
--- a/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/KryoNamespaces.java
+++ b/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/KryoNamespaces.java
@@ -164,6 +164,7 @@
                     DefaultPortDescription.class,
                     Element.class,
                     Link.Type.class,
+                    Link.State.class,
                     Timestamp.class,
                     HostId.class,
                     HostDescription.class,