diff --git a/source/java/org/alfresco/repo/model/filefolder/FileInfoImpl.java b/source/java/org/alfresco/repo/model/filefolder/FileInfoImpl.java
index 8b130e3643..df64b037e7 100644
--- a/source/java/org/alfresco/repo/model/filefolder/FileInfoImpl.java
+++ b/source/java/org/alfresco/repo/model/filefolder/FileInfoImpl.java
@@ -42,6 +42,8 @@ import org.alfresco.service.namespace.QName;
  */
 public class FileInfoImpl implements FileInfo
 {
+    private static final long serialVersionUID = 1915018521764853537L;
+
     private NodeRef nodeRef;
     private NodeRef linkNodeRef;
     private boolean isFolder;
diff --git a/source/java/org/alfresco/service/cmr/model/FileInfo.java b/source/java/org/alfresco/service/cmr/model/FileInfo.java
index e8e418404f..4ad6a37de3 100644
--- a/source/java/org/alfresco/service/cmr/model/FileInfo.java
+++ b/source/java/org/alfresco/service/cmr/model/FileInfo.java
@@ -26,7 +26,6 @@ package org.alfresco.service.cmr.model;
 
 import java.io.Serializable;
 import java.util.Date;
-import java.util.Locale;
 import java.util.Map;
 
 import org.alfresco.service.cmr.repository.ContentData;
@@ -40,7 +39,7 @@ import org.alfresco.service.namespace.QName;
  * 
  * @author Derek Hulley
  */
-public interface FileInfo
+public interface FileInfo extends Serializable
 {
     /**
      * @return Returns a reference to the low-level node representing this file