diff --git a/expected/ut-T.out b/expected/ut-T.out
index 303adf6..08cf2cd 100644
--- a/expected/ut-T.out
+++ b/expected/ut-T.out
@@ -7,6 +7,7 @@ SET client_min_messages TO LOG;
 SET search_path TO public;
 -- This hint affects queries with an equivalent query ID when executed as
 -- a subquery.
+SET pg_hint_plan.enable_hint_table TO on;
 SELECT get_query_id('SELECT * FROM t1 WHERE id = 1;') AS query_id \gset
 INSERT INTO hint_plan.hints VALUES (DEFAULT, :'query_id', '', 'SeqScan(t1)');
 PREPARE p1 AS SELECT * FROM t1 WHERE id = 100;
diff --git a/sql/ut-T.sql b/sql/ut-T.sql
index 3d14b7e..a10de85 100644
--- a/sql/ut-T.sql
+++ b/sql/ut-T.sql
@@ -9,6 +9,7 @@ SET search_path TO public;
 
 -- This hint affects queries with an equivalent query ID when executed as
 -- a subquery.
+SET pg_hint_plan.enable_hint_table TO on;
 SELECT get_query_id('SELECT * FROM t1 WHERE id = 1;') AS query_id \gset
 INSERT INTO hint_plan.hints VALUES (DEFAULT, :'query_id', '', 'SeqScan(t1)');