diff --git a/demo/views.py b/demo/views.py
index 89a1ce459..8016e4627 100755
--- a/demo/views.py
+++ b/demo/views.py
@@ -2,6 +2,7 @@
 import os
 from django.conf import settings
 from django.contrib.auth.decorators import login_required
+from django.utils.translation import ugettext as _
 from modoboa.lib.webutils import ajax_simple_response
 from modoboa.lib.emailutils import sendmail_simple, sendmail_fromfile
 from modoboa.lib.decorators import needs_mailbox