diff --git a/src/plugins/plugin_misc_groupblog.py b/src/plugins/plugin_misc_groupblog.py
index 8d004778..3d50dbf9 100755
--- a/src/plugins/plugin_misc_groupblog.py
+++ b/src/plugins/plugin_misc_groupblog.py
@@ -612,7 +612,7 @@ class GroupBlog(object):
             d = self.host.plugins["XEP-0060"].getItems(client.item_access_pubsub, self.getNodeName(pub_jid),
                                                        max_items=max_items, profile_key=profile_key)
             d.addCallback(items2feed, pub_jid, client)
-            d.addErrback(lambda ignore: {})  # TODO: more complete error management (log !)
+            d.addErrback(lambda ignore: '')  # TODO: more complete error management (log !)
             return d
 
         #TODO: we need to use the server corresponding the the host of the jid