diff --git a/lib/cartodb/backends/filter-stats.js b/lib/cartodb/backends/filter-stats.js
index 7aa3adc7..de41da3f 100644
--- a/lib/cartodb/backends/filter-stats.js
+++ b/lib/cartodb/backends/filter-stats.js
@@ -26,17 +26,14 @@ FilterStatsBackends.prototype.getFilterStats = function (username, unfiltered_qu
     var stats = {};
     var self = this;
 
-    function getUnfilteredRows() {
-        getEstimatedRows(self.pgQueryRunner, username, unfiltered_query, this);
-    },
-    function receiveUnfilteredRows(err, rows) {
+    getEstimatedRows(self.pgQueryRunner, username, unfiltered_query, function (err, rows) {
         if (err){
             callback(err);
             return;
         }
         stats.unfiltered_rows = rows;
         this(null, rows);
-    },
+    })
     function getFilteredRows() {
         if ( filters && !_.isEmpty(filters)) {
             var analysisFilter = new AnalysisFilter(filters);