diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTablePanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTablePanel.java
index 50eeec8..cae787c 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTablePanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTablePanel.java
@@ -30,7 +30,6 @@ import com.sencha.gxt.data.shared.loader.LoadResultListStoreBinding;
 import com.sencha.gxt.widget.core.client.FramedPanel;
 import com.sencha.gxt.widget.core.client.container.MarginData;
 import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
-import com.sencha.gxt.widget.core.client.form.ComboBox;
 import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
 import com.sencha.gxt.widget.core.client.grid.ColumnModel;
 import com.sencha.gxt.widget.core.client.grid.Grid;
@@ -51,7 +50,6 @@ public class ValidationsTablePanel extends FramedPanel {
 	protected VerticalLayoutContainer vl;
 	protected EventBus eventBus;
 
-	protected ComboBox<Validations> comboValidations;
 	protected ListStore<Validations> storeValidations;
 	protected ListLoader<ListLoadConfig, ListLoadResult<Validations>> loader;
 	protected Grid<Validations> grid;