diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index a7628c21..2783552c 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -240,8 +240,6 @@ LayergroupController.prototype.register = function(app) {
         userMiddleware,
         this.prepareContext,
         this.analysisNodeStatus(this.analysisStatusBackend),
-        this.setCacheControlHeader(),
-        this.setLastModifiedHeader(),
         this.sendResponse()
     );
 };
@@ -577,9 +575,7 @@ LayergroupController.prototype.setLastModifiedHeader = function () {
 
 LayergroupController.prototype.setCacheControlHeader = function () {
     return function setCacheControlHeaderMiddleware (req, res, next) {
-        if (!res.get('Cache-Control')) {
-            res.set('Cache-Control', 'public,max-age=31536000');
-        }
+        res.set('Cache-Control', 'public,max-age=31536000');
 
         next();
     };