diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java b/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java
index c395bbb..2f45e89 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/util/WsUtil.java
@@ -347,7 +347,7 @@ public class WsUtil {
 			shortener = (UrlShortener) session.getAttribute(WsUtil.URL_SHORTENER_SERVICE);
 
 			if(shortener==null){
-				shortener = new UrlShortener(session.getScope().toString());
+				shortener = new UrlShortener();
 				session.setAttribute(URL_SHORTENER_SERVICE, shortener);
 			}