diff --git a/lib/cartodb/models/dataview/histogram.js b/lib/cartodb/models/dataview/histogram.js
index d868513a..46f86a5d 100644
--- a/lib/cartodb/models/dataview/histogram.js
+++ b/lib/cartodb/models/dataview/histogram.js
@@ -257,7 +257,7 @@ var dateHistogramQueryTpl = dot.template([
     '    count(*) AS freq',
     'FROM ({{=it._query}}) _cdb_histogram, basics, bins, nulls',
     'WHERE date_part(\'epoch\', {{=it._column}}) IS NOT NULL',
-    'GROUP BY bin, bins_number, bin_width, nulls_count, __cdb_avg_val, timestamp_start',
+    'GROUP BY bin, bins_number, bin_width, nulls_count, timestamp_start',
     'ORDER BY bin'
 ].join('\n'));