diff --git a/weboob/backends/aum/backend.py b/weboob/backends/aum/backend.py
index 70e3331a..ddc72f4c 100644
--- a/weboob/backends/aum/backend.py
+++ b/weboob/backends/aum/backend.py
@@ -330,7 +330,8 @@ class AuMBackend(BaseBackend, ICapMessages, ICapMessagesPost, ICapDating, ICapCh
                 contact.name = profile.get_name()
                 contact.status = s
             else:
-                contact = Contact(_id, profile.get_name(), s, self.browser.id2url(_id))
+                contact = Contact(_id, profile.get_name(), s)
+            contact.url = self.browser.id2url(_id)
             contact.status_msg = profile.get_status()
             contact.summary = profile.description
             for photo in profile.photos:
diff --git a/weboob/capabilities/contact.py b/weboob/capabilities/contact.py
index 740c8100..65eb45e6 100644
--- a/weboob/capabilities/contact.py
+++ b/weboob/capabilities/contact.py
@@ -59,11 +59,11 @@ class Contact(CapBaseObject):
     STATUS_OFFLINE = 0x004
     STATUS_ALL =     0xfff
 
-    def __init__(self, id, name, status, url):
+    def __init__(self, id, name, status):
         CapBaseObject.__init__(self, id)
         self.add_field('name', basestring, name)
         self.add_field('status', int, status)
-        self.add_field('url', basestring, url)
+        self.add_field('url', basestring)
         self.add_field('status_msg', basestring)
         self.add_field('summary', basestring)
         self.add_field('photos', dict, OrderedDict())