diff --git a/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabItem.java b/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabItem.java
index 8851b23..3422ec2 100644
--- a/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabItem.java
+++ b/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabItem.java
@@ -415,10 +415,14 @@ public class TabItem extends HBoxLayoutContainer {
 
 	public void showCancelButton() {
 		removeBtn.setVisible(true);
+		forceLayout();
+		onResize();
 	}
 
 	public void hideCancelButton() {
 		removeBtn.setVisible(false);
+		forceLayout();
+		onResize();
 	}
 
 	public String getValue() {
diff --git a/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabularListFld.java b/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabularListFld.java
index 8413a6a..8ff7a1a 100644
--- a/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabularListFld.java
+++ b/src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/TabularListFld.java
@@ -114,6 +114,7 @@ public class TabularListFld extends AbstractFld {
 				int pos = items.indexOf(upperItem);
 				if (pos == 0) {
 					upperItem.showCancelButton();
+					
 					TabItem item = new TabItem(this, tabPar, false);
 					items.add(1, item);
 					vp.insert(item, 1);// don't use new