diff --git a/lib/cartodb/api/api-router.js b/lib/cartodb/api/api-router.js
index f5b40c9e..15469962 100644
--- a/lib/cartodb/api/api-router.js
+++ b/lib/cartodb/api/api-router.js
@@ -16,7 +16,7 @@ const AuthBackend = require('../backends/auth');
 
 const UserLimitsApi = require('../backends/api/user_limits_api');
 const OverviewsMetadataApi = require('../backends/api/overviews_metadata_api');
-const FilterStatsApi = require('../backends/api/filter_stats_api');
+const FilterStatsApi = require('../backends/filter-stats');
 const TablesExtentApi = require('../backends/api/tables_extent_api');
 
 const LayergroupAffectedTablesCache = require('../cache/layergroup_affected_tables');
@@ -124,7 +124,7 @@ module.exports = class ApiRouter {
         const pgQueryRunner = new PgQueryRunner(pgConnection);
         const overviewsMetadataApi = new OverviewsMetadataApi(pgQueryRunner);
 
-        const filterStatsApi = new FilterStatsApi(pgQueryRunner);
+        const filterStatsBackend = new FilterStatsApi(pgQueryRunner);
         const tablesExtentApi = new TablesExtentApi(pgQueryRunner);
 
         const mapConfigAdapter = new MapConfigAdapter(
@@ -134,7 +134,7 @@ module.exports = class ApiRouter {
             new DataviewsWidgetsAdapter(),
             new AnalysisMapConfigAdapter(analysisBackend),
             new AggregationMapConfigAdapter(pgConnection),
-            new MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsApi),
+            new MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsBackend),
             new TurboCartoAdapter()
         );
 
diff --git a/lib/cartodb/backends/api/filter_stats_api.js b/lib/cartodb/backends/filter-stats.js
similarity index 86%
rename from lib/cartodb/backends/api/filter_stats_api.js
rename to lib/cartodb/backends/filter-stats.js
index 72fd970f..ba427405 100644
--- a/lib/cartodb/backends/api/filter_stats_api.js
+++ b/lib/cartodb/backends/filter-stats.js
@@ -1,12 +1,12 @@
 var _ = require('underscore');
 var step = require('step');
-var AnalysisFilter = require('../../models/filter/analysis');
+var AnalysisFilter = require('../models/filter/analysis');
 
-function FilterStatsApi(pgQueryRunner) {
+function FilterStatsBackends(pgQueryRunner) {
     this.pgQueryRunner = pgQueryRunner;
 }
 
-module.exports = FilterStatsApi;
+module.exports = FilterStatsBackends;
 
 function getEstimatedRows(pgQueryRunner, username, query, callback) {
     pgQueryRunner.run(username, "EXPLAIN (FORMAT JSON)"+query, function(err, result_rows) {
@@ -23,7 +23,7 @@ function getEstimatedRows(pgQueryRunner, username, query, callback) {
     });
 }
 
-FilterStatsApi.prototype.getFilterStats = function (username, unfiltered_query, filters, callback) {
+FilterStatsBackends.prototype.getFilterStats = function (username, unfiltered_query, filters, callback) {
   var stats = {};
   var self = this;
   step(
diff --git a/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js b/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js
index 72c29593..a3133da2 100644
--- a/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js
+++ b/lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter.js
@@ -2,9 +2,9 @@ var step = require('step');
 var queue = require('queue-async');
 var _ = require('underscore');
 
-function MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsApi) {
+function MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsBackend) {
     this.overviewsMetadataApi = overviewsMetadataApi;
-    this.filterStatsApi = filterStatsApi;
+    this.filterStatsBackend = filterStatsBackend;
 }
 
 module.exports = MapConfigOverviewsAdapter;
@@ -53,7 +53,7 @@ MapConfigOverviewsAdapter.prototype.getMapConfig = function(user, requestMapConf
                    function collectStatsData(err, filters, unfiltered_query) {
                        var next_step = this;
                        if ( filters ) {
-                           self.filterStatsApi.getFilterStats(
+                           self.filterStatsBackend.getFilterStats(
                                user,
                                unfiltered_query, filters,
                                function(err, stats) {
diff --git a/test/integration/mapconfig_overviews_adapter.js b/test/integration/mapconfig_overviews_adapter.js
index 79196e3b..288c2560 100644
--- a/test/integration/mapconfig_overviews_adapter.js
+++ b/test/integration/mapconfig_overviews_adapter.js
@@ -6,7 +6,7 @@ var cartodbRedis = require('cartodb-redis');
 var PgConnection = require(__dirname + '/../../lib/cartodb/backends/pg_connection');
 var PgQueryRunner = require('../../lib/cartodb/backends/pg_query_runner');
 var OverviewsMetadataApi = require('../../lib/cartodb/backends/api/overviews_metadata_api');
-var FilterStatsApi = require('../../lib/cartodb/backends/api/filter_stats_api');
+var FilterStatsBackend = require('../../lib/cartodb/backends/filter-stats');
 var MapConfigOverviewsAdapter = require('../../lib/cartodb/models/mapconfig/adapter/mapconfig-overviews-adapter');
 
 var redisPool = new RedisPool(global.environment.redis);
@@ -14,9 +14,9 @@ var metadataBackend = cartodbRedis({pool: redisPool});
 var pgConnection = new PgConnection(metadataBackend);
 var pgQueryRunner = new PgQueryRunner(pgConnection);
 var overviewsMetadataApi = new OverviewsMetadataApi(pgQueryRunner);
-var filterStatsApi = new FilterStatsApi(pgQueryRunner);
+var filterStatsBackend = new FilterStatsBackend(pgQueryRunner);
 
-var mapConfigOverviewsAdapter = new MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsApi);
+var mapConfigOverviewsAdapter = new MapConfigOverviewsAdapter(overviewsMetadataApi, filterStatsBackend);
 
 describe('MapConfigOverviewsAdapter', function() {