diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 9e93ea0f..3660948b 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -326,7 +326,6 @@ LayergroupController.prototype.bbox = function(req, res, next) {
         res, 
         +req.params.width, 
         +req.params.height, 
-        null, 
         {
             west: +req.params.west,
             north: +req.params.north,