diff --git a/modoboa/static/js/twocols_nav.js b/modoboa/static/js/twocols_nav.js
index 45d8bae1c..d04b3e3e8 100644
--- a/modoboa/static/js/twocols_nav.js
+++ b/modoboa/static/js/twocols_nav.js
@@ -177,7 +177,7 @@ TwocolsNav.prototype = {
     startTFASetup: function (evt) {
         evt.preventDefault();
         $.ajax({
-            url: '/api/v1/account/tfa/setup/',
+            url: window.root_url + '/api/v1/account/tfa/setup/',
             type: 'post',
             contentType: 'application/json'
         }).done(function (resp) {
@@ -191,7 +191,7 @@ TwocolsNav.prototype = {
             pin_code: $('#pin-code').val()
         };
         $.ajax({
-            url: '/api/v1/account/tfa/setup/check/',
+            url: window.root_url + '/api/v1/account/tfa/setup/check/',
             type: 'post',
             global: false,
             data: JSON.stringify(data),
diff --git a/modoboa/templates/nlayout.html b/modoboa/templates/nlayout.html
index 2c94c30a4..8a219c595 100644
--- a/modoboa/templates/nlayout.html
+++ b/modoboa/templates/nlayout.html
@@ -87,6 +87,7 @@
     <script src="{% static 'js/top_notifications.js' %}" type="text/javascript"></script>
     <script type="text/javascript" src="{% url 'javascript-catalog' %}"></script>
     <script type="text/javascript">
+      var root_url = "{% url 'core:root' %}".replace(/\/$/, "");
       var top_notifications;
       var userLang = "{{ LANGUAGE_CODE }}";