diff --git a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/GcubeCkanDataCatalogServiceAsync.java b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/GcubeCkanDataCatalogServiceAsync.java
index fdf79ff..3b58ff8 100644
--- a/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/GcubeCkanDataCatalogServiceAsync.java
+++ b/src/main/java/org/gcube/portlets/gcubeckan/gcubeckandatacatalog/client/GcubeCkanDataCatalogServiceAsync.java
@@ -85,5 +85,9 @@ public interface GcubeCkanDataCatalogServiceAsync {
 	 */
 	void isManageProductEnabled(AsyncCallback<Boolean> callback);
 
+	/**
+	 * check if the view per vre is enabled
+	 * @param callback
+	 */
 	void isViewPerVREEnabled(AsyncCallback<String> callback);
 }