diff --git a/src/org/pEp/jniadapter/Identity.java b/src/org/pEp/jniadapter/Identity.java
index b0ae279..56478a6 100644
--- a/src/org/pEp/jniadapter/Identity.java
+++ b/src/org/pEp/jniadapter/Identity.java
@@ -1,6 +1,8 @@
 package org.pEp.jniadapter;
 
-public class Identity {
+import java.io.Serializable;
+
+public class Identity implements Serializable{
     public String address;
     public String fpr;
     public String user_id;