diff --git a/src/main/java/org/gcube/datatransfer/resolver/gis/geonetwork/GeonetworkResolver.java b/src/main/java/org/gcube/datatransfer/resolver/gis/geonetwork/GeonetworkResolver.java
index 9089789..b6bc07b 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/gis/geonetwork/GeonetworkResolver.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/gis/geonetwork/GeonetworkResolver.java
@@ -44,7 +44,8 @@ import org.slf4j.LoggerFactory;
  * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
  * Apr 4, 2016
  *
- * This class authenticate all query on Geonetwork
+ * This class authenticate all query on Geonetwork by SCOPE
+ * Used by gCube Data Catalog for harvesting
  */
 public class GeonetworkResolver extends HttpServlet{