From 734cfa6d8392ffa2a3e1697119136a434734eecb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Garc=C3=ADa=20Aubert?=
 <danielgarciaaubert@gmail.com>
Date: Tue, 5 Sep 2017 15:51:31 +0200
Subject: [PATCH] Fix undefined argument

---
 lib/cartodb/models/dataview/histogram.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/cartodb/models/dataview/histogram.js b/lib/cartodb/models/dataview/histogram.js
index af18ea12..fdacbbe0 100644
--- a/lib/cartodb/models/dataview/histogram.js
+++ b/lib/cartodb/models/dataview/histogram.js
@@ -128,8 +128,8 @@ const nullsQueryTpl = ctx => `
     __cdb_nulls AS (
         SELECT
             count(*) AS __cdb_nulls_count
-        FROM (${it._query}) __cdb_histogram_nulls
-        WHERE ${it._column} IS NULL
+        FROM (${ctx._query}) __cdb_histogram_nulls
+        WHERE ${ctx._column} IS NULL
     )
 `;