diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/create/AddColumnPanel.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/create/AddColumnPanel.java
index 2771d3f..e03a91a 100644
--- a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/create/AddColumnPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/create/AddColumnPanel.java
@@ -656,6 +656,7 @@ public class AddColumnPanel extends FramedPanel implements
 			comboDimensionTypeLabel.setVisible(false);
 			comboColumnReferenceTypeLabel.setVisible(false);
 			comboTimeDimensionTypeLabel.setVisible(false);
+			comboAttributeType.reset();
 			defaultStringLabel.setVisible(false);
 			break;
 		case DIMENSION:
@@ -674,6 +675,7 @@ public class AddColumnPanel extends FramedPanel implements
 			comboDimensionTypeLabel.setVisible(false);
 			comboColumnReferenceTypeLabel.setVisible(false);
 			comboTimeDimensionTypeLabel.setVisible(false);
+			comboMeasureType.reset();
 			defaultStringLabel.setVisible(false);
 			break;
 		case TIMEDIMENSION: