diff --git a/lib/cartodb/middleware/cache-control-header.js b/lib/cartodb/middleware/cache-control-header.js
index aebb64de..574ae3b5 100644
--- a/lib/cartodb/middleware/cache-control-header.js
+++ b/lib/cartodb/middleware/cache-control-header.js
@@ -1,4 +1,6 @@
-module.exports = function setCacheControlHeader ({ ttl = 31536000, revalidate = false } = {}) {
+const ONE_YEAR_IN_SECONDS = 60 * 60 * 24 * 365;
+
+module.exports = function setCacheControlHeader ({ ttl = ONE_YEAR_IN_SECONDS, revalidate = false } = {}) {
     return function setCacheControlHeaderMiddleware (req, res, next) {
         if (req.method !== 'GET') {
             return next();