diff --git a/src/backend/utils/activity/pgstat.c b/src/backend/utils/activity/pgstat.c
index 84d65a76af..142e26af52 100644
--- a/src/backend/utils/activity/pgstat.c
+++ b/src/backend/utils/activity/pgstat.c
@@ -918,6 +918,9 @@ pgstat_snapshot_fixed(PgStat_Kind kind)
 	AssertArg(pgstat_is_kind_valid(kind));
 	AssertArg(pgstat_get_kind_info(kind)->fixed_amount);
 
+	if (force_stats_snapshot_clear)
+		pgstat_clear_snapshot();
+
 	if (pgstat_fetch_consistency == PGSTAT_FETCH_CONSISTENCY_SNAPSHOT)
 		pgstat_build_snapshot();
 	else