diff --git a/allauth_ens/tests.py b/allauth_ens/tests.py
index fe3edc3..b902d81 100644
--- a/allauth_ens/tests.py
+++ b/allauth_ens/tests.py
@@ -166,13 +166,15 @@ class LongTermClipperTests(CASTestCase):
     def _setup_ldap(self, promo=12, username="test"):
         try:
             buid = six.binary_type(username, 'utf-8')
+            home = six.binary_type('/users/%d/phy/test/' % promo, 'utf-8')
         except TypeError:
             buid = six.binary_type(username)
+            home = six.binary_type('/users/%d/phy/test/' % promo)
         _mock_ldap.directory['dc=spi,dc=ens,dc=fr'] = {
             'uid': [buid],
             'cn': [b'John Smith'],
             'mailRoutingAddress': [b'test@clipper.ens.fr'],
-            'homeDirectory': [bytes('/users/%d/phy/test/' % promo)],
+            'homeDirectory': [home],
         }
 
     def _count_ldap_queries(self):