diff --git a/modoboa/admin/tests/test_account.py b/modoboa/admin/tests/test_account.py
index 2b15f2d64..2c47ea9f4 100644
--- a/modoboa/admin/tests/test_account.py
+++ b/modoboa/admin/tests/test_account.py
@@ -1,6 +1,7 @@
 # coding: utf-8
 
 from django.core.urlresolvers import reverse
+from django.test import override_settings
 
 from modoboa.core.models import User
 from modoboa.core import tests as core_tests
@@ -154,6 +155,10 @@ class AccountTestCase(ModoTestCase):
         )
 
 
+@override_settings(AUTHENTICATION_BACKENDS=(
+    'modoboa.lib.authbackends.LDAPBackend',
+    'modoboa.lib.authbackends.SimpleBackend',
+))
 class LDAPAccountTestCase(core_tests.LDAPTestCaseMixin, ModoTestCase):
     """Check LDAP related code."""
 
diff --git a/modoboa/core/tests.py b/modoboa/core/tests.py
index 524dbf615..cc27441e4 100644
--- a/modoboa/core/tests.py
+++ b/modoboa/core/tests.py
@@ -58,8 +58,7 @@ class LDAPTestCaseMixin(object):
             try:
                 backend.update_user_password(
                     username, password, new_password)
-            except exceptions.InternalError as exp:
-                print exp
+            except exceptions.InternalError:
                 pass
             else:
                 return