diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java b/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java
index 3f1f9b6..d0cc882 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java
@@ -354,7 +354,7 @@ public class AppControllerExplorer implements EventHandler, TreeAppControllerInt
 								
 								
 								Info.display("Info", "An operation of sharing was submitted");
-								explorerPanel.mask("Setting permissions");
+								explorerPanel.mask("Setting permissions", ConstantsExplorer.LOADINGSTYLE);
 								
 								rpcWorkspaceService.shareFolder(fileModel, finalDialog.getSharedListUsers(), isNewFolder, finalDialog.getSelectedACL(), new AsyncCallback<Boolean>() {
 
@@ -1337,7 +1337,7 @@ public class AppControllerExplorer implements EventHandler, TreeAppControllerInt
 						String clickedButton = be.getButtonClicked().getItemId();
 						if(clickedButton.equals(Dialog.YES)){
 							
-							explorerPanel.getAsycTreePanel().mask("Deleting");
+							explorerPanel.getAsycTreePanel().mask("Deleting", ConstantsExplorer.LOADINGSTYLE);
 							rpcWorkspaceService.removeItem(event.getFileTarget().getIdentifier(), new AsyncCallback<Boolean>(){
 
 								@Override