diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java
index 13e5e89..394d540 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/server/CKANPublisherServicesImpl.java
@@ -1,5 +1,6 @@
 package org.gcube.portlets.widgets.ckandatapublisherwidget.server;
 
+import java.net.URLEncoder;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.List;
@@ -383,7 +384,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 				toCreate.setId(datasetId);
 
 				// retrieve the url
-				String datasetUrl =  utils.getPortletUrl() + "?path=" +  utils.getUrlFromDatasetIdOrName(getUserCKanTokenFromSession(scope), datasetId, true);
+				String datasetUrl =  utils.getPortletUrl() + "?" + URLEncoder.encode("path=" +  utils.getUrlFromDatasetIdOrName(getUserCKanTokenFromSession(scope), datasetId, true), "UTF-8");
 				toCreate.setSource(datasetUrl);
 
 				// start a thread that will associate this dataset with the group
@@ -400,7 +401,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 					threadAssociationToGroup.start();
 
 				}
-				
+
 				// launch notification thread
 				WritePostCatalogueManagerThread threadWritePost = 
 						new WritePostCatalogueManagerThread(
@@ -408,7 +409,7 @@ public class CKANPublisherServicesImpl extends RemoteServiceServlet implements C
 								scope, 
 								toCreate.getTitle(), 
 								datasetUrl, 
-								true, // send notification to other people 
+								false, // send notification to other people 
 								toCreate.getTags(), 
 								toCreate.getAuthorFullName()
 								);