diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 9644aa06..f6089a00 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -313,7 +313,7 @@ LayergroupController.prototype.finalizeGetTileOrGrid = function(err, req, res, t
         global.statsClient.increment('windshaft.tiles.error');
         global.statsClient.increment('windshaft.tiles.' + formatStat + '.error');
     } else {
-        this.sendResponse(req, res, tile, 200, headers);
+        this.sendResponse(req, res, tile, tile.length===0? 204:200, headers);
         global.statsClient.increment('windshaft.tiles.success');
         global.statsClient.increment('windshaft.tiles.' + formatStat + '.success');
     }