diff --git a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVWorkSpaceSelectionCard.java b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVWorkSpaceSelectionCard.java
index 06f5da4..4d38884 100644
--- a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVWorkSpaceSelectionCard.java
+++ b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/CSVWorkSpaceSelectionCard.java
@@ -7,7 +7,6 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.user.td.csvexportwidget.client.workspace.WorkspacePanel;
-import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
 import org.gcube.portlets.user.td.gwtservice.shared.csv.CSVExportSession;
 import org.gcube.portlets.user.td.wizardwidget.client.WizardCard;
 import org.gcube.portlets.widgets.lighttree.client.Item;
diff --git a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/grid/ColumnDataGridPanel.java b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/grid/ColumnDataGridPanel.java
index 9a32c43..4877d5b 100644
--- a/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/grid/ColumnDataGridPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/csvexportwidget/client/grid/ColumnDataGridPanel.java
@@ -16,7 +16,6 @@ import com.google.gwt.event.shared.HandlerRegistration;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.sencha.gxt.core.client.IdentityValueProvider;
 import com.sencha.gxt.core.client.Style.SelectionMode;
-import com.sencha.gxt.core.client.util.Margins;
 import com.sencha.gxt.data.client.loader.RpcProxy;
 import com.sencha.gxt.data.shared.ListStore;
 import com.sencha.gxt.data.shared.loader.ListLoadConfig;