diff --git a/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java b/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
index d5a73c0..9d8a0b2 100644
--- a/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
+++ b/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
@@ -77,6 +77,8 @@
 import org.onosproject.net.OduSignalId;
 import org.onosproject.net.OduSignalType;
 import org.onosproject.net.OmsPort;
+import org.onosproject.net.OtuPort;
+import org.onosproject.net.OtuSignalType;
 import org.onosproject.net.Port;
 import org.onosproject.net.PortNumber;
 import org.onosproject.net.TributarySlot;
@@ -85,6 +87,7 @@
 import org.onosproject.net.device.DefaultPortStatistics;
 import org.onosproject.net.device.OchPortDescription;
 import org.onosproject.net.device.OduCltPortDescription;
+import org.onosproject.net.device.OtuPortDescription;
 import org.onosproject.net.device.OmsPortDescription;
 import org.onosproject.net.device.PortStatistics;
 import org.onosproject.net.flow.CompletedBatchOperation;
@@ -511,6 +514,9 @@
             .register(OchPortDescription.class)
             .register(OmsPortDescription.class)
             .register(TributarySlot.class)
+            .register(OtuPort.class)
+            .register(OtuSignalType.class)
+            .register(OtuPortDescription.class)
             .register(
                     MplsIntent.class,
                     MplsPathIntent.class,