diff --git a/VERSION.txt b/VERSION.txt
index b09e22d12fc..556f99bed52 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1,6 +1,7 @@
 
  + 328199 Ensure blocking connectors always close socket
  + 328205 Improved SelectManager stopping
+ + 328273 Added serializable to default user identity
 
 jetty-7.2.0.v20101020 20 October 2010
  + 289540 added javadoc into distribution
diff --git a/jetty-security/src/main/java/org/eclipse/jetty/security/DefaultUserIdentity.java b/jetty-security/src/main/java/org/eclipse/jetty/security/DefaultUserIdentity.java
index 1d4425b627e..b29f07578fd 100644
--- a/jetty-security/src/main/java/org/eclipse/jetty/security/DefaultUserIdentity.java
+++ b/jetty-security/src/main/java/org/eclipse/jetty/security/DefaultUserIdentity.java
@@ -13,6 +13,7 @@
 
 package org.eclipse.jetty.security;
 
+import java.io.Serializable;
 import java.security.Principal;
 
 import javax.security.auth.Subject;
@@ -25,9 +26,11 @@ import org.eclipse.jetty.server.UserIdentity;
  * The default implementation of UserIdentity.
  *
  */
-public class DefaultUserIdentity implements UserIdentity
+public class DefaultUserIdentity implements UserIdentity, Serializable
 {
-    private final Subject _subject;
+	private static final long serialVersionUID = 2418992006515454163L;
+	
+	private final Subject _subject;
     private final Principal _userPrincipal;
     private final String[] _roles;