diff --git a/lib/cartodb/models/mapconfig_overviews_adapter.js b/lib/cartodb/models/mapconfig_overviews_adapter.js
index 00cf02e0..b78acf38 100644
--- a/lib/cartodb/models/mapconfig_overviews_adapter.js
+++ b/lib/cartodb/models/mapconfig_overviews_adapter.js
@@ -8,6 +8,7 @@ function MapConfigNamedLayersAdapter(overviewsApi) {
 module.exports = MapConfigNamedLayersAdapter;
 
 MapConfigNamedLayersAdapter.prototype.getLayers = function(username, layers, callback) {
+  var self = this;
 
   if (!layers) {
       return callback(null);
@@ -16,7 +17,7 @@ MapConfigNamedLayersAdapter.prototype.getLayers = function(username, layers, cal
   var augmentLayersQueue = queue(layers.length);
 
   function augmentLayer(layer, done) {
-      this.overviewsApi.getOverviewsMetadata(username, layer.options.sql, function(err, metadata){
+      self.overviewsApi.getOverviewsMetadata(username, layer.options.sql, function(err, metadata){
            if ( !_.isEmpty(metadata) ) {
                layer = _.extend({}, layer, { overviews: metadata });
            }