diff --git a/lib/cartodb/controllers/named_static_maps.js b/lib/cartodb/controllers/named_static_maps.js
index fa7a6e8d..b1395eb0 100644
--- a/lib/cartodb/controllers/named_static_maps.js
+++ b/lib/cartodb/controllers/named_static_maps.js
@@ -189,6 +189,7 @@ NamedStaticMapsController.prototype.named = function(req, res) {
                 self.app.sendError(res, err, self.app.findStatusCode(err), 'STATIC_VIZ_MAP', err);
             } else {
                 res.setHeader('Content-Type', headers['Content-Type'] || 'image/' + format);
+                res.setHeader('Cache-Control', 'public,max-age=7200,must-revalidate');
                 self.app.sendResponse(res, [image, 200]);
             }
         }