diff --git a/src/backend/access/spgist/spgvacuum.c b/src/backend/access/spgist/spgvacuum.c
index 2f4a4aad241..8a5b540c809 100644
--- a/src/backend/access/spgist/spgvacuum.c
+++ b/src/backend/access/spgist/spgvacuum.c
@@ -507,8 +507,7 @@ vacuumRedirectAndPlaceholder(Relation index, Relation heaprel, Buffer buffer)
 	xlrec.nToPlaceholder = 0;
 	xlrec.snapshotConflictHorizon = InvalidTransactionId;
 
-	/* XXX: providing heap relation would allow more pruning */
-	vistest = GlobalVisTestFor(NULL);
+	vistest = GlobalVisTestFor(heaprel);
 
 	START_CRIT_SECTION();