diff --git a/themes/grav/templates/partials/login.html.twig b/themes/grav/templates/partials/login.html.twig
index 14a95b38..ef945aca 100644
--- a/themes/grav/templates/partials/login.html.twig
+++ b/themes/grav/templates/partials/login.html.twig
@@ -16,7 +16,7 @@
 
         {% set redirect = redirect ?: uri.path ~ uri.params ~ (uri.query ? '?' ~ uri.query : '') %}
 
-        <form method="post" action="{{ admin_route('/') }}">
+        <form method="post" action="{{ admin_route('/')|trim('/', 'right') }}">
             <div class="padding">
                 {% block form %}{% endblock %}
                 <input type="hidden" name="redirect" value="{{ redirect }}" />