diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 2783552c..405857ad 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -254,8 +254,8 @@ function validateLayerRouteMiddleware(req, res, next) {
 
 LayergroupController.prototype.analysisNodeStatus = function (analysisStatusBackend) {
     return function analysisNodeStatusMiddleware(req, res, next) {
-        analysisStatusBackend.getNodeStatus(res.locals, (err, nodeStatus, stats) => {
-            req.profiler.add(stats || {});
+        analysisStatusBackend.getNodeStatus(res.locals, (err, nodeStatus, stats = {}) => {
+            req.profiler.add(stats);
 
             if (err) {
                 err.label = 'GET NODE STATUS';
@@ -313,8 +313,8 @@ LayergroupController.prototype.getDataview = function (dataviewBackend) {
     return function getDataviewMiddleware (req, res, next) {
         const { user, mapConfigProvider } = res.locals;
 
-        dataviewBackend.getDataview(mapConfigProvider, user, res.locals, (err, dataview, stats) => {
-            req.profiler.add(stats || {});
+        dataviewBackend.getDataview(mapConfigProvider, user, res.locals, (err, dataview, stats = {}) => {
+            req.profiler.add(stats);
 
             if (err) {
                 err.label = 'GET DATAVIEW';
@@ -332,8 +332,8 @@ LayergroupController.prototype.dataviewSearch = function (dataviewBackend) {
     return function dataviewSearchMiddlewarify (req, res, next) {
         const { user, dataviewName, mapConfigProvider } = res.locals;
 
-        dataviewBackend.search(mapConfigProvider, user, dataviewName, res.locals, (err, searchResult, stats) => {
-            req.profiler.add(stats || {});
+        dataviewBackend.search(mapConfigProvider, user, dataviewName, res.locals, (err, searchResult, stats = {}) => {
+            req.profiler.add(stats);
 
             if (err) {
                 err.label = 'GET DATAVIEW SEARCH';
@@ -353,8 +353,8 @@ LayergroupController.prototype.attributes = function (attributesBackend) {
 
         const { mapConfigProvider } = res.locals;
 
-        attributesBackend.getFeatureAttributes(mapConfigProvider, res.locals, false, (err, tile, stats) => {
-            req.profiler.add(stats || {});
+        attributesBackend.getFeatureAttributes(mapConfigProvider, res.locals, false, (err, tile, stats = {}) => {
+            req.profiler.add(stats);
 
             if (err) {
                 err.label = 'GET ATTRIBUTES';
@@ -399,7 +399,7 @@ LayergroupController.prototype.tile = function (tileBackend) {
         const { mapConfigProvider } = res.locals;
         const params = getRequestParams(res.locals);
 
-        tileBackend.getTile(mapConfigProvider, params, (err, tile, headers, stats) => {
+        tileBackend.getTile(mapConfigProvider, params, (err, tile, headers, stats = {}) => {
             req.profiler.add(stats);
 
             if (err) {
@@ -427,7 +427,7 @@ LayergroupController.prototype.layer = function (tileBackend) {
         const { mapConfigProvider } = res.locals;
         const params = getRequestParams(res.locals);
 
-        tileBackend.getTile(mapConfigProvider, params, (err, tile, headers, stats) => {
+        tileBackend.getTile(mapConfigProvider, params, (err, tile, headers, stats = {}) => {
             req.profiler.add(stats);
 
             if (err) {
@@ -500,11 +500,11 @@ LayergroupController.prototype.center = function (previewBackend) {
         };
 
         const format = req.params.format === 'jpg' ? 'jpeg' : 'png';
-        const { mapConfigProvider } = res.locals;
+        const { mapConfigProvider: provider } = res.locals;
 
-        previewBackend.getImage(mapConfigProvider, format, width, height, zoom, center,(err, image, headers, stats) => {
+        previewBackend.getImage(provider, format, width, height, zoom, center, (err, image, headers, stats = {}) => {
             req.profiler.done('render-' + format);
-            req.profiler.add(stats || {});
+            req.profiler.add(stats);
 
             if (err) {
                 err.label = 'STATIC_MAP';
@@ -535,11 +535,11 @@ LayergroupController.prototype.bbox = function (previewBackend) {
             south: +req.params.south
         };
         const format = req.params.format === 'jpg' ? 'jpeg' : 'png';
-        const { mapConfigProvider } = res.locals;
+        const { mapConfigProvider: provider } = res.locals;
 
-        previewBackend.getImage(mapConfigProvider, format, width, height, bounds, (err, image, headers, stats) => {
+        previewBackend.getImage(provider, format, width, height, bounds, (err, image, headers, stats = {}) => {
             req.profiler.done('render-' + format);
-            req.profiler.add(stats || {});
+            req.profiler.add(stats);
 
             if (err) {
                 err.label = 'STATIC_MAP';