diff --git a/lib/cartodb/backends/filter-stats.js b/lib/cartodb/backends/filter-stats.js
index d2ffe6ba..5458c637 100644
--- a/lib/cartodb/backends/filter-stats.js
+++ b/lib/cartodb/backends/filter-stats.js
@@ -36,9 +36,9 @@ FilterStatsBackends.prototype.getFilterStats = function (username, unfiltered_qu
         if ( filters && !_.isEmpty(filters)) {
             var analysisFilter = new AnalysisFilter(filters);
             var query = analysisFilter.sql(unfiltered_query);
-            getEstimatedRows(self.pgQueryRunner, username, query, this);
-        } else {
-            this(null, null);
+            getEstimatedRows(self.pgQueryRunner, username, query, function () {
+
+            });
         }
     })
     function receiveFilteredRows(err, rows) {