diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/MetaDataFieldSkeleton.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/MetaDataFieldSkeleton.java
index d07bc7f..8fbc215 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/MetaDataFieldSkeleton.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/MetaDataFieldSkeleton.java
@@ -301,7 +301,7 @@ public class MetaDataFieldSkeleton extends Composite{
 			}else{
 
 				// listbox
-				holder = new ListBox();
+				holder = new ListBox(field.isMultiSelection());
 
 				// if it is not mandatory, add a disabled option
 				if(!field.getMandatory()){
@@ -323,9 +323,6 @@ public class MetaDataFieldSkeleton extends Composite{
 				if(field.getDefaultValue() != null)
 					((ListBox)holder).setSelectedValue(field.getDefaultValue());
 
-				// check if multiple selection is allowed
-				((ListBox)holder).setMultipleSelect(field.isMultiSelection());
-
 			}
 
 			break;