diff -r d00688ea8124 -r 12c5513ee71a src/pyams_security/zmi/plugin/group.py
--- a/src/pyams_security/zmi/plugin/group.py	Wed Mar 28 16:03:21 2018 +0200
+++ b/src/pyams_security/zmi/plugin/group.py	Fri Mar 30 15:34:15 2018 +0200
@@ -244,6 +244,7 @@
         return Group()
 
     def update_content(self, group, data):
+        data = data.get(self, data)
         group.group_id = data.get('group_id')
         group.title = data.get('title')
         group.description = data.get('description')