diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java b/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java
index a23a5ae..1c0edf8 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java
@@ -2798,7 +2798,11 @@ public class GWTWorkspaceServiceImpl extends RemoteServiceServlet implements GWT
 			
 			List<ExtendedWorkspaceACL> listEACL = new ArrayList<ExtendedWorkspaceACL>(listACL.size());
 			for (WorkspaceACL workspaceACL : listACL) {
-				listEACL.add(new ExtendedWorkspaceACL(workspaceACL.getId(), workspaceACL.getLabel(), workspaceACL.getDefaultValue(), workspaceACL.getUserType(), workspaceACL.getDescription(), wsFolder.getOwner().getPortalLogin(), folderId));
+				
+				boolean isBaseSharedFolder = (wsFolder.getId().compareTo(folderId)==0)?true:false;
+				ExtendedWorkspaceACL eac = new ExtendedWorkspaceACL(workspaceACL.getId(), workspaceACL.getLabel(), workspaceACL.getDefaultValue(), workspaceACL.getUserType(), workspaceACL.getDescription(), wsFolder.getOwner().getPortalLogin(), folderId, isBaseSharedFolder);
+				workspaceLogger.trace("ACL "+workspaceACL+" converted in: "+eac);
+				listEACL.add(eac);
 			}
 			
 			return listEACL;
diff --git a/src/main/java/org/gcube/portlets/user/workspace/shared/ExtendedWorkspaceACL.java b/src/main/java/org/gcube/portlets/user/workspace/shared/ExtendedWorkspaceACL.java
index 90925d1..ebcb4e0 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/shared/ExtendedWorkspaceACL.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/shared/ExtendedWorkspaceACL.java
@@ -16,6 +16,9 @@ public class ExtendedWorkspaceACL extends WorkspaceACL{
 	
 	private String loginOwner;
 	private String workspaceItemId;
+
+
+	private boolean isBaseSharedFolder;
 	
 	/**
 	 * 
@@ -32,10 +35,11 @@ public class ExtendedWorkspaceACL extends WorkspaceACL{
 	 * @param loginOwner
 	 * @param workspaceItemId
 	 */
-	public ExtendedWorkspaceACL(String id, String label, boolean defaultValue, USER_TYPE userType, String description, String loginOwner, String workspaceItemId) {
+	public ExtendedWorkspaceACL(String id, String label, boolean defaultValue, USER_TYPE userType, String description, String loginOwner, String workspaceItemId, boolean isBaseSharedFolder) {
 		super(id, label, defaultValue, userType, description);
 		this.loginOwner = loginOwner;
 		this.workspaceItemId = workspaceItemId;
+		this.isBaseSharedFolder = isBaseSharedFolder;
 	}
 	
 	
@@ -57,6 +61,13 @@ public class ExtendedWorkspaceACL extends WorkspaceACL{
 		this.workspaceItemId = workspaceItemId;
 	}
 	
+	public boolean isBaseSharedFolder() {
+		return isBaseSharedFolder;
+	}
+
+	public void setBaseSharedFolder(boolean isBaseSharedFolder) {
+		this.isBaseSharedFolder = isBaseSharedFolder;
+	}
 
 	@Override
 	public String toString() {
@@ -65,18 +76,9 @@ public class ExtendedWorkspaceACL extends WorkspaceACL{
 		builder.append(loginOwner);
 		builder.append(", workspaceItemId=");
 		builder.append(workspaceItemId);
-		builder.append(", getId()=");
-		builder.append(getId());
-		builder.append(", getLabel()=");
-		builder.append(getLabel());
-		builder.append(", getDefaultValue()=");
-		builder.append(getDefaultValue());
-		builder.append(", getUserType()=");
-		builder.append(getUserType());
-		builder.append(", getDescription()=");
-		builder.append(getDescription());
+		builder.append(", isBaseSharedFolder=");
+		builder.append(isBaseSharedFolder);
 		builder.append("]");
 		return builder.toString();
 	}
-	
 }