diff --git a/src/test/recovery/t/004_timeline_switch.pl b/src/test/recovery/t/004_timeline_switch.pl
index a777d8e6a3d..6d7b21ba73d 100644
--- a/src/test/recovery/t/004_timeline_switch.pl
+++ b/src/test/recovery/t/004_timeline_switch.pl
@@ -7,7 +7,7 @@ use warnings;
 use File::Path qw(rmtree);
 use PostgresNode;
 use TestLib;
-use Test::More tests => 4;
+use Test::More tests => 5;
 
 $ENV{PGDATABASE} = 'postgres';
 
@@ -58,8 +58,19 @@ $node_standby_2->append_conf(
 	'postgresql.conf', qq(
 primary_conninfo='$connstr_1'
 ));
+
+# Rotate logfile before restarting, for the log checks done below.
+$node_standby_2->rotate_logfile;
 $node_standby_2->restart;
 
+# Wait for walreceiver to reconnect after the restart.  We want to
+# verify that after reconnection, the walreceiver stays alive during
+# the timeline switch.
+$node_standby_2->poll_query_until('postgres',
+	"SELECT EXISTS(SELECT 1 FROM pg_stat_wal_receiver)");
+my $wr_pid_before_switch = $node_standby_2->safe_psql('postgres',
+	"SELECT pid FROM pg_stat_wal_receiver");
+
 # Insert some data in standby 1 and check its presence in standby 2
 # to ensure that the timeline switch has been done.
 $node_standby_1->safe_psql('postgres',
@@ -80,6 +91,14 @@ ok( !$node_standby_2->log_contains(
 	),
 	'WAL receiver should not be stopped across timeline jumps');
 
+# Verify that the walreceiver process stayed alive across the timeline
+# switch, check its PID.
+my $wr_pid_after_switch = $node_standby_2->safe_psql('postgres',
+	"SELECT pid FROM pg_stat_wal_receiver");
+
+is($wr_pid_before_switch, $wr_pid_after_switch,
+	'WAL receiver PID matches across timeline jumps');
+
 # Ensure that a standby is able to follow a primary on a newer timeline
 # when WAL archiving is enabled.