diff --git a/x-pack/plugins/maps/public/classes/sources/es_geo_grid_source/es_geo_grid_source.js b/x-pack/plugins/maps/public/classes/sources/es_geo_grid_source/es_geo_grid_source.js
index 92f6c258af5979..a4dba71307b71d 100644
--- a/x-pack/plugins/maps/public/classes/sources/es_geo_grid_source/es_geo_grid_source.js
+++ b/x-pack/plugins/maps/public/classes/sources/es_geo_grid_source/es_geo_grid_source.js
@@ -161,7 +161,6 @@ export class ESGeoGridSource extends AbstractESAggSource {
                   bounds: makeESBbox(bufferedExtent),
                   field: this._descriptor.geoField,
                   precision,
-                  size: DEFAULT_MAX_BUCKETS_LIMIT,
                 },
               },
             },