diff --git a/lib/cartodb/models/aggregation/aggregation-query.js b/lib/cartodb/models/aggregation/aggregation-query.js
index 3fc68c8e..69118021 100644
--- a/lib/cartodb/models/aggregation/aggregation-query.js
+++ b/lib/cartodb/models/aggregation/aggregation-query.js
@@ -156,7 +156,7 @@ const aggregationQueryTemplates = {
         GROUP BY _cdb_gx, _cdb_gy ${dimensionNames(ctx)}
     )
     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+0.5)*res, (_cdb_gy+0.5)*res), 3857) AS the_geom_webmercator
         ${dimensionNames(ctx)}
         ${aggregateColumnNames(ctx)}
         FROM _cdb_clusters, _cdb_params