diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/interfaces/GXTCategoryItemInterface.java b/src/main/java/org/gcube/portlets/user/workspace/client/interfaces/GXTCategoryItemInterface.java
index c095c9d..ebe1da3 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/interfaces/GXTCategoryItemInterface.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/interfaces/GXTCategoryItemInterface.java
@@ -7,11 +7,9 @@ import java.io.Serializable;
  *
  */
 public class GXTCategoryItemInterface implements Serializable {
+
 	
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 1L;
+	private static final long serialVersionUID = -9099563454980400252L;
 	
 	//Smart Folder SMF
 	//VALUE = KEY - THE KEY TO SEARCH BY CATEORY IN HOME LIBRARY
@@ -24,14 +22,12 @@ public class GXTCategoryItemInterface implements Serializable {
 	public static final String SMF_UNKNOWN = "Unknown";
 	public static final String SMF_FOLDERS = "Folders";
 	public static final String SMF_SHARED_FOLDERS = "Shared Folders";
-	public static final String SMF_GCUBE_ITEMS= "GcubeItems";
+	public static final String SMF_GCUBE_ITEMS= "Gcube Items";
 	
-	GXTCategoryItemInterface(){}
+	public GXTCategoryItemInterface(){}
 	
 	//Messages MS
 	public static final String MS_MESSAGES = "Messages";
 	public static final String MS_SENT = "Sent";
 	public static final String MS_RECEIVED = "Received";
-	
-
 }