diff --git a/src/plugins/plugin_misc_groupblog.py b/src/plugins/plugin_misc_groupblog.py
index c827c653..339054c4 100755
--- a/src/plugins/plugin_misc_groupblog.py
+++ b/src/plugins/plugin_misc_groupblog.py
@@ -28,7 +28,7 @@ from sat.core import exceptions
 from wokkel import disco, data_form, iwokkel
 from wokkel import rsm
 from zope.interface import implements
-from tools import common
+from sat.tools import common
 # import uuid
 
 try:
diff --git a/src/plugins/plugin_xep_0277.py b/src/plugins/plugin_xep_0277.py
index bb7be689..97ffe41e 100755
--- a/src/plugins/plugin_xep_0277.py
+++ b/src/plugins/plugin_xep_0277.py
@@ -28,6 +28,7 @@ from twisted.python import failure
 from sat.core import exceptions
 from sat.tools import xml_tools
 from sat.tools import sat_defer
+from sat.tools import common
 
 # XXX: tmp.pubsub is actually use instead of wokkel version
 from wokkel import pubsub
@@ -314,6 +315,10 @@ class XEP_0277(object):
             else:
                 microblog_data['author_email'] = unicode(email_elt)
 
+            # categories
+            categories = (category_elt.getAttribute('term','') for category_elt in entry_elt.elements(NS_ATOM, 'category'))
+            common.iter2dict('tag', categories, microblog_data)
+
         defer.returnValue(microblog_data)
 
     @defer.inlineCallbacks
@@ -399,6 +404,11 @@ class XEP_0277(object):
         entry_elt.addElement('published',
             content=rfc3339.timestamp_from_tf(float(data.get('published', current_time))))
 
+        ## categories ##
+        for tag in common.dict2iter("tag", data):
+            category_elt = entry_elt.addElement("category")
+            category_elt['term'] = tag
+
         ## id ##
         entry_id = data.get('id', item_id) # FIXME: use a proper id (see XEP-0277 §7.1)
         entry_elt.addElement('id', content=entry_id) #