diff --git a/lib/cartodb/models/dataview/histogram.js b/lib/cartodb/models/dataview/histogram.js
index 01b62148..c2df2c5f 100644
--- a/lib/cartodb/models/dataview/histogram.js
+++ b/lib/cartodb/models/dataview/histogram.js
@@ -583,7 +583,7 @@ module.exports = class Histogram extends BaseWidget {
         override = override || {};
         var buckets = [];
 
-        var binsCount = getBinsCount(override);
+        var binsCount = this.getBinsCount(override);
         var width = getWidth(override);
         var binsStart = this.getBinStart(override);
         var nulls = 0;
@@ -694,6 +694,9 @@ module.exports = class Histogram extends BaseWidget {
         return override.end || 0;
     }
 
+    getBinsCount (override) {
+        return override.bins || 0;
+    }
 };
 
 var DATE_AGGREGATIONS = {
@@ -707,10 +710,6 @@ var DATE_AGGREGATIONS = {
     'year': true
 };
 
-function getBinsCount(override) {
-    return override.bins || 0;
-}
-
 function getWidth(override) {
     var width = 0;
     var binsCount = override.bins;