diff --git a/src/test/regress/expected/portals.out b/src/test/regress/expected/portals.out
index f71e0b3d41d..47548eec775 100644
--- a/src/test/regress/expected/portals.out
+++ b/src/test/regress/expected/portals.out
@@ -1,6 +1,7 @@
 --
 -- Cursor regression tests
 --
+SET synchronize_seqscans = off;
 BEGIN;
 DECLARE foo1 SCROLL CURSOR FOR SELECT * FROM tenk1 ORDER BY unique2;
 DECLARE foo2 SCROLL CURSOR FOR SELECT * FROM tenk2;
@@ -1561,3 +1562,4 @@ fetch all in held_portal;
 (1 row)
 
 reset default_toast_compression;
+reset synchronize_seqscans;
diff --git a/src/test/regress/sql/portals.sql b/src/test/regress/sql/portals.sql
index fc4cccb96c0..995fef597bd 100644
--- a/src/test/regress/sql/portals.sql
+++ b/src/test/regress/sql/portals.sql
@@ -2,6 +2,8 @@
 -- Cursor regression tests
 --
 
+SET synchronize_seqscans = off;
+
 BEGIN;
 
 DECLARE foo1 SCROLL CURSOR FOR SELECT * FROM tenk1 ORDER BY unique2;
@@ -605,3 +607,4 @@ drop table toasted_data;
 fetch all in held_portal;
 
 reset default_toast_compression;
+reset synchronize_seqscans;