diff --git a/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java b/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
index ab810a8..9238257 100644
--- a/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
+++ b/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
@@ -28,6 +28,7 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.vtnrsc.AllocationPool;
+import org.onosproject.vtnrsc.DefaultAllocationPool;
 import org.onosproject.vtnrsc.DefaultSubnet;
 import org.onosproject.vtnrsc.HostRoute;
 import org.onosproject.vtnrsc.Subnet;
@@ -89,6 +90,7 @@
                                                  HostRoute.class,
                                                  Subnet.Mode.class,
                                                  AllocationPool.class,
+                                                 DefaultAllocationPool.class,
                                                  DefaultSubnet.class,
                                                  IpAddress.Version.class))
                 .build().asJavaMap();