diff --git a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java
index 9b177d0..f9d4235 100644
--- a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java
+++ b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/view/GCubeCkanDataCatalogPanel.java
@@ -229,7 +229,7 @@ public class GCubeCkanDataCatalogPanel extends BaseViewTemplate {
 
 	private native void hideHeaderSection()  /*-{
 
-		var e = $wnd.$doc.getElementByTagName('<header>');
+		var e = $wnd.document.getElementByTagName('<header>');
 		console.log('header : '+e);
 		if(e){
 			console.log('header found');