diff --git a/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ProviderIdSerializer.java b/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ProviderIdSerializer.java
index f546f63..060ac7d 100644
--- a/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ProviderIdSerializer.java
+++ b/core/store/serializers/src/main/java/org/onlab/onos/store/serializers/ProviderIdSerializer.java
@@ -24,13 +24,15 @@
     public void write(Kryo kryo, Output output, ProviderId object) {
         output.writeString(object.scheme());
         output.writeString(object.id());
+        output.writeBoolean(object.isAncillary());
     }
 
     @Override
     public ProviderId read(Kryo kryo, Input input, Class<ProviderId> type) {
         String scheme = input.readString();
         String id = input.readString();
-        return new ProviderId(scheme, id);
+        boolean isAncillary = input.readBoolean();
+        return new ProviderId(scheme, id, isAncillary);
     }
 
 }