diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/view/windows/accounting/AccoutingInfoContainer.java b/src/main/java/org/gcube/portlets/user/workspace/client/view/windows/accounting/AccoutingInfoContainer.java
index 5deebb0..0192897 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/view/windows/accounting/AccoutingInfoContainer.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/view/windows/accounting/AccoutingInfoContainer.java
@@ -66,7 +66,7 @@ public class AccoutingInfoContainer extends LayoutContainer {
 	private void createToolBar(){
 		
 		ToolBar bar = new ToolBar();
-		final ToggleButton buttonGrouping = new ToggleButton("Grouping", Resources.getIconGridView());
+		final ToggleButton buttonGrouping = new ToggleButton("", Resources.getIconGridView());
 		buttonGrouping.setToolTip("Grouping by operation");
 		buttonGrouping.setScale(ButtonScale.SMALL);   
 		buttonGrouping.toggle(true);