diff --git a/src/main/java/org/gcube/portlets/admin/resourcesweeper/client/dialog/SweeperDialog.java b/src/main/java/org/gcube/portlets/admin/resourcesweeper/client/dialog/SweeperDialog.java
index 6756238..a26c596 100644
--- a/src/main/java/org/gcube/portlets/admin/resourcesweeper/client/dialog/SweeperDialog.java
+++ b/src/main/java/org/gcube/portlets/admin/resourcesweeper/client/dialog/SweeperDialog.java
@@ -129,7 +129,7 @@ public class SweeperDialog {
 							"Selected leaf: " + ((AtomicTreeNode) selectedModel.getParent()).getNode() + "::" + selectedModel.getNode());
 
 
-					dialog.mask("Loading resource to cleanup");
+					dialog.mask("Loading resource to cleanup", "loading-indicator");
 
 					sweeperService.getSweepElems(currentScope, SweeperActions.valueOf(selectedModel.getNode()),
 							/*
@@ -164,7 +164,7 @@ public class SweeperDialog {
 											super.onClick(be);
 											final List<ModelData> selectedElems = grid.getSelectionModel().getSelection();
 
-											dialog.mask("Applying required operation");
+											dialog.mask("Applying required operation", "loading-indicator");
 
 											sweeperService.applySweep(
 													currentScope, selectedElems, new AsyncCallback<Void>() {