diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/KryoFactory.java b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/KryoFactory.java
index 45a43bf..eeb307f 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/serializers/KryoFactory.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/serializers/KryoFactory.java
@@ -114,6 +114,7 @@
 	kryo.register(FlowPath.class);
 	kryo.register(FlowPathFlags.class);
 	kryo.register(FlowPathType.class);
+	kryo.register(FlowPathUserState.class);
 	kryo.register(IPv4.class);
 	kryo.register(IPv4Net.class);
 	kryo.register(IPv6.class);