diff --git a/democracy_club/apps/mailing_list/urls.py b/democracy_club/apps/mailing_list/urls.py
index 517a4191..43c8749b 100644
--- a/democracy_club/apps/mailing_list/urls.py
+++ b/democracy_club/apps/mailing_list/urls.py
@@ -12,6 +12,7 @@
                 template_name="base.html",
                 form_class=MailingListSignupForm,
                 backend=settings.EMAIL_SIGNUP_BACKEND,
+                backend_kwargs=settings.EMAIL_SIGNUP_BACKEND_KWARGS,
             )
         ),
         name="mailing_list_signup_view",