diff --git a/extra/modules/root.ptl b/extra/modules/root.ptl
index ee4ddfe..b7f6489 100644
--- a/extra/modules/root.ptl
+++ b/extra/modules/root.ptl
@@ -27,16 +27,15 @@ from authentic.root import LoginError, RegistrationError
 
 import stores
 
-def is_federated_with_msp(self):
-    if not self.lasso_proxy_dump:
+def is_federated_with_msp(authentic_identity):
+    if not authentic_identity.lasso_proxy_dump:
         return False
-    identity = lasso.Identity.newFromDump(self.lasso_proxy_dump)
+    identity = lasso.Identity.newFromDump(authentic_identity.lasso_proxy_dump)
     msp_provider_id = get_cfg('adeline', {}).get('msp_idp')
     for p in identity.providerIds:
         if p == msp_provider_id:
             return True
     return False
-identities.Identity.is_federated_with_msp = is_federated_with_msp
 
 def get_key_from_provider_id(provider_id):
     return provider_id.replace('://', '-').replace('/', '-')
@@ -72,7 +71,7 @@ class AlternateRootDirectory(OldRootDirectory):
             except KeyError:
                 get_session_manager().expire_session() 
             else:
-                if identity.is_federated_with_msp():
+                if is_federated_with_msp(identity):
                     federated_with_msp = 'plop' # any value will do
         get_response().filter['federated_with_msp'] = federated_with_msp
         get_response().filter['msp_session_image_url'] = get_cfg('adeline', {}).get(
@@ -87,7 +86,7 @@ class AlternateRootDirectory(OldRootDirectory):
         federated_with_msp = False
         if get_session() and get_session().user:
             identity = identities.get_store().get_identity(get_session().user)
-            if identity.is_federated_with_msp():
+            if is_federated_with_msp(identity):
                 federated_with_msp = True
         for klp, lp in get_cfg('providers', {}).items():
             if lp['role'] == lasso.PROVIDER_ROLE_IDP:
@@ -144,7 +143,7 @@ class AlternateRootDirectory(OldRootDirectory):
         '<legend>%s</legend>' % _('Our partners services')
         '<ul>'
 
-        if identity.is_federated_with_msp():
+        if is_federated_with_msp(identity):
             msp_provider_id = get_cfg('adeline', {}).get('msp_idp')
             klp = get_key_from_provider_id(msp_provider_id)
             terminate_url = '/liberty/sp/%s/proxy_terminate_confirm' % klp