diff --git a/share/jupyterhub/templates/login.html b/share/jupyterhub/templates/login.html
index 153a6c270e..a4b3253c34 100644
--- a/share/jupyterhub/templates/login.html
+++ b/share/jupyterhub/templates/login.html
@@ -20,7 +20,7 @@
   </a>
 </div>
 {% else %}
-<form action="{{login_url}}?next={{next}}" method="post" role="form">
+<form action="{{authenticator_login_url}}?next={{next}}" method="post" role="form">
   <div class="auth-form-header">
     Sign in
   </div>