diff --git a/lib/cartodb/controllers/named_maps_admin.js b/lib/cartodb/controllers/named_maps_admin.js
index 6f991728..c28a2746 100644
--- a/lib/cartodb/controllers/named_maps_admin.js
+++ b/lib/cartodb/controllers/named_maps_admin.js
@@ -16,8 +16,10 @@ function NamedMapsAdminController(authApi, templateMaps) {
 module.exports = NamedMapsAdminController;
 
 NamedMapsAdminController.prototype.register = function (app) {
+    const prefix = app.base_url_templated;
+
     app.post(
-        app.base_url_templated + '/',
+        `${prefix}/`,
         cors(),
         userMiddleware,
         this.checkContentType('POST', 'POST TEMPLATE'),
@@ -26,7 +28,7 @@ NamedMapsAdminController.prototype.register = function (app) {
     );
 
     app.put(
-        app.base_url_templated + '/:template_id',
+        `${prefix}/:template_id`,
         cors(),
         userMiddleware,
         this.checkContentType('PUT', 'PUT TEMPLATE'),
@@ -35,7 +37,7 @@ NamedMapsAdminController.prototype.register = function (app) {
     );
 
     app.get(
-        app.base_url_templated + '/:template_id',
+        `${prefix}/:template_id`,
         cors(),
         userMiddleware,
         this.authorizedByAPIKey('get', 'GET TEMPLATE'),
@@ -43,7 +45,7 @@ NamedMapsAdminController.prototype.register = function (app) {
     );
 
     app.delete(
-        app.base_url_templated + '/:template_id',
+        `${prefix}/:template_id`,
         cors(),
         userMiddleware,
         this.authorizedByAPIKey('delete', 'DELETE TEMPLATE'),
@@ -51,7 +53,7 @@ NamedMapsAdminController.prototype.register = function (app) {
     );
 
     app.get(
-        app.base_url_templated + '/',
+        `${prefix}/`,
         cors(),
         userMiddleware,
         this.authorizedByAPIKey('list', 'GET TEMPLATE LIST'),
@@ -59,7 +61,7 @@ NamedMapsAdminController.prototype.register = function (app) {
     );
 
     app.options(
-        app.base_url_templated + '/:template_id',
+        `${prefix}/:template_id`,
         cors('Content-Type')
     );
 };