diff --git a/src/pg/test/sql/42_observatory_exploration_test.sql b/src/pg/test/sql/42_observatory_exploration_test.sql
index ee59de4..b776ef3 100644
--- a/src/pg/test/sql/42_observatory_exploration_test.sql
+++ b/src/pg/test/sql/42_observatory_exploration_test.sql
@@ -48,6 +48,11 @@ SELECT * FROM  cdb_observatory.OBS_GetAvailableNumerators(
   ST_SetSRID(ST_MakePoint(-73.9, 40.7), 4326),
   ARRAY['unit/tags.money'], '', '', ''
 );
+
+SELECT * FROM  cdb_observatory.OBS_GetAvailableNumerators(
+  ST_SetSRID(ST_MakePoint(-73.9, 40.7), 4326),
+  ARRAY['unit/tags.money', 'subsection/tags.housing'], '', '', ''
+);
 */
 
 --