--- a/pyramid_cubicweb/defaults.py	Tue Sep 02 20:50:33 2014 +0200
+++ b/pyramid_cubicweb/defaults.py	Fri Sep 19 14:26:55 2014 +0200
@@ -1,15 +1,11 @@
 from pyramid.authentication import SessionAuthenticationPolicy
 from pyramid.authorization import ACLAuthorizationPolicy
-from pyramid.session import SignedCookieSessionFactory
 
 from pyramid_cubicweb.core import get_principals
 
 
 def includeme(config):
-    config.set_session_factory(
-        SignedCookieSessionFactory(
-            secret=config.registry.settings['session.secret']
-        ))
+    config.include('pyramid_cubicweb.session')
 
     config.set_authentication_policy(
         SessionAuthenticationPolicy(callback=get_principals))