diff --git a/lib/cartodb/models/aggregation/aggregation-query.js b/lib/cartodb/models/aggregation/aggregation-query.js
index 7dd55b3c..55ee53ea 100644
--- a/lib/cartodb/models/aggregation/aggregation-query.js
+++ b/lib/cartodb/models/aggregation/aggregation-query.js
@@ -50,6 +50,7 @@ const SUPPORTED_AGGREGATE_FUNCTIONS = {
 };
 
 const aggregateColumns = ctx => {
+    // TODO: always add count
     let columns = ctx.columns || {};
     if (Object.keys(columns).length === 0) {
         // default aggregation
@@ -117,7 +118,7 @@ const aggregationQueryTemplates = {
         GROUP BY _cdb_gx, _cdb_gy
     )
     SELECT
-        ST_SetSRID(ST_MakePoint(_cdb_gx*(res+0.5), _cdb_gy*(res*0.5)), 3857) AS the_geom_webmercator,
+        ST_SetSRID(ST_MakePoint(_cdb_gx*(res+0.5), _cdb_gy*(res+0.5)), 3857) AS the_geom_webmercator,
         _cdb_feature_count
         FROM _cdb_clusters, _cdb_params
     `,