diff --git a/src/pg/sql/41_observatory_augmentation.sql b/src/pg/sql/41_observatory_augmentation.sql
index 38fb503..62f561f 100644
--- a/src/pg/sql/41_observatory_augmentation.sql
+++ b/src/pg/sql/41_observatory_augmentation.sql
@@ -372,9 +372,9 @@ BEGIN
              ORDER BY geom_weight DESC, numer_timespan DESC
              LIMIT 1
      $query$
-    INTO numer_colname, numer_geomref_colname, numer_table,
-         denom_colname, denom_geomref_colname, denom_table,
-         geom_colname, geom_geomref_colname, geom_table
+    INTO numer_colname, numer_geomref_colname, numer_tablename,
+         denom_colname, denom_geomref_colname, denom_tablename,
+         geom_colname, geom_geomref_colname, geom_tablename
     USING COALESCE(boundary_id, ''), measure_id, COALESCE(time_span, '');
 
   IF normalize ILIKE 'area' AND numer_aggregate ILIKE 'sum' THEN