diff --git a/bin/expected/repack.out b/bin/expected/repack.out
index 2fab3d7..96506c3 100644
--- a/bin/expected/repack.out
+++ b/bin/expected/repack.out
@@ -82,9 +82,10 @@ INSERT INTO tbl_with_dropped_toast VALUES(2, 20, sqrt(2::numeric(1000,999))::tex
 ALTER TABLE tbl_with_dropped_toast DROP COLUMN t;
 INSERT INTO tbl_badindex VALUES(1, 10);
 INSERT INTO tbl_badindex VALUES(2, 10);
+-- This will fail. Silence the message as it's different across PG versions.
+SET client_min_messages = fatal;
 CREATE UNIQUE INDEX CONCURRENTLY idx_badindex_n ON tbl_badindex (n);
-ERROR:  could not create unique index "idx_badindex_n"
-DETAIL:  Key (n)=(10) is duplicated.
+SET client_min_messages = warning;
 INSERT INTO tbl_idxopts VALUES (0, 'abc'), (1, 'aaa'), (2, NULL), (3, 'bbb');
 --
 -- before
diff --git a/bin/sql/repack.sql b/bin/sql/repack.sql
index 732c573..3b9797d 100644
--- a/bin/sql/repack.sql
+++ b/bin/sql/repack.sql
@@ -100,7 +100,11 @@ ALTER TABLE tbl_with_dropped_toast DROP COLUMN t;
 
 INSERT INTO tbl_badindex VALUES(1, 10);
 INSERT INTO tbl_badindex VALUES(2, 10);
+
+-- This will fail. Silence the message as it's different across PG versions.
+SET client_min_messages = fatal;
 CREATE UNIQUE INDEX CONCURRENTLY idx_badindex_n ON tbl_badindex (n);
+SET client_min_messages = warning;
 
 INSERT INTO tbl_idxopts VALUES (0, 'abc'), (1, 'aaa'), (2, NULL), (3, 'bbb');