diff --git a/src/test/recovery/t/001_stream_rep.pl b/src/test/recovery/t/001_stream_rep.pl
index 15ace5f51c..3590516425 100644
--- a/src/test/recovery/t/001_stream_rep.pl
+++ b/src/test/recovery/t/001_stream_rep.pl
@@ -220,9 +220,9 @@ isnt($xmin, '', 'xmin of non-cascaded slot non-null with hs feedback');
 is($catalog_xmin, '',
 	'catalog xmin of non-cascaded slot still null with hs_feedback');
 
-($xmin, $catalog_xmin) = get_slot_xmins($node_standby_1, $slotname_2);
-isnt($xmin, '', 'xmin of cascaded slot non-null with hs feedback');
-is($catalog_xmin, '', 'catalog xmin of cascaded slot still null with hs_feedback');
+my ($xmin1, $catalog_xmin1) = get_slot_xmins($node_standby_1, $slotname_2);
+isnt($xmin1, '', 'xmin of cascaded slot non-null with hs feedback');
+is($catalog_xmin1, '', 'catalog xmin of cascaded slot still null with hs_feedback');
 
 note "doing some work to advance xmin";
 $node_master->safe_psql('postgres', q{
@@ -245,16 +245,16 @@ $node_master->safe_psql('postgres', 'CHECKPOINT;');
 wait_slot_xmins($node_master, $slotname_1, "xmin <> '$xmin'");
 
 my ($xmin2, $catalog_xmin2) = get_slot_xmins($node_master, $slotname_1);
-note "new xmin $xmin2, old xmin $xmin";
+note "master slot's new xmin $xmin2, old xmin $xmin";
 isnt($xmin2, $xmin, 'xmin of non-cascaded slot with hs feedback has changed');
 is($catalog_xmin2, '',
 	'catalog xmin of non-cascaded slot still null with hs_feedback unchanged');
 
-wait_slot_xmins($node_standby_1, $slotname_2, "xmin <> '$xmin'");
+wait_slot_xmins($node_standby_1, $slotname_2, "xmin <> '$xmin1'");
 
 ($xmin2, $catalog_xmin2) = get_slot_xmins($node_standby_1, $slotname_2);
-note "new xmin $xmin2, old xmin $xmin";
-isnt($xmin2, $xmin, 'xmin of cascaded slot with hs feedback has changed');
+note "standby_1 slot's new xmin $xmin2, old xmin $xmin1";
+isnt($xmin2, $xmin1, 'xmin of cascaded slot with hs feedback has changed');
 is($catalog_xmin2, '',
 	'catalog xmin of cascaded slot still null with hs_feedback unchanged');