diff --git a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/mcast/McastRoleStoreKeySerializer.java b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/mcast/McastRoleStoreKeySerializer.java
new file mode 100644
index 0000000..aec7278
--- /dev/null
+++ b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/mcast/McastRoleStoreKeySerializer.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.segmentrouting.mcast;
+
+
+import com.esotericsoftware.kryo.Kryo;
+import com.esotericsoftware.kryo.Serializer;
+import com.esotericsoftware.kryo.io.Input;
+import com.esotericsoftware.kryo.io.Output;
+import org.onlab.packet.IpAddress;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+
+/**
+ * Custom serializer for {@link McastRoleStoreKey}.
+ */
+class McastRoleStoreKeySerializer extends Serializer<McastRoleStoreKey> {
+
+    /**
+     * Creates {@link McastRoleStoreKeySerializer} serializer instance.
+     */
+    McastRoleStoreKeySerializer() {
+        // non-null, immutable
+        super(false, true);
+    }
+
+    @Override
+    public void write(Kryo kryo, Output output, McastRoleStoreKey object) {
+        kryo.writeClassAndObject(output, object.mcastIp());
+        output.writeString(object.deviceId().toString());
+        kryo.writeClassAndObject(output, object.source());
+    }
+
+    @Override
+    public McastRoleStoreKey read(Kryo kryo, Input input, Class<McastRoleStoreKey> type) {
+        IpAddress mcastIp = (IpAddress) kryo.readClassAndObject(input);
+        final String str = input.readString();
+        DeviceId deviceId =  DeviceId.deviceId(str);
+        ConnectPoint source = (ConnectPoint) kryo.readClassAndObject(input);
+        return new McastRoleStoreKey(mcastIp, deviceId, source);
+    }
+}