diff --git a/src/test/regress/expected/portals.out b/src/test/regress/expected/portals.out
index bc52317e3ce..2c14851a1ec 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;
@@ -1518,3 +1519,4 @@ fetch backward all in c2;
 (3 rows)
 
 rollback;
+reset synchronize_seqscans;
diff --git a/src/test/regress/sql/portals.sql b/src/test/regress/sql/portals.sql
index 5d1ef52aa5e..f6ec62879a0 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;
@@ -569,3 +571,4 @@ declare c2 scroll cursor for select generate_series(1,3) as g;
 fetch all in c2;
 fetch backward all in c2;
 rollback;
+reset synchronize_seqscans;