--- a/entities/test/unittest_base.py	Wed Dec 23 10:52:55 2015 +0100
+++ b/entities/test/unittest_base.py	Wed Dec 23 15:44:28 2015 +0100
@@ -249,6 +249,7 @@
             expected = {
                 'cw_etype': u'CWGroup',
                 'cw_source': 'system',
+                'eid': entity.eid,
                 'cwuri': u'http://testing.fr/cubicweb/%s' % entity.eid,
                 'creation_date': entity.creation_date,
                 'modification_date': entity.modification_date,