diff --git a/src/backend/commands/vacuumlazy.c b/src/backend/commands/vacuumlazy.c
index 5649a70800..7c00418578 100644
--- a/src/backend/commands/vacuumlazy.c
+++ b/src/backend/commands/vacuumlazy.c
@@ -1809,11 +1809,8 @@ lazy_truncate_heap(Relation onerel, LVRelStats *vacrelstats)
 {
 	BlockNumber old_rel_pages = vacrelstats->rel_pages;
 	BlockNumber new_rel_pages;
-	PGRUsage	ru0;
 	int			lock_retry;
 
-	pg_rusage_init(&ru0);
-
 	/* Report that we are now truncating */
 	pgstat_progress_update_param(PROGRESS_VACUUM_PHASE,
 								 PROGRESS_VACUUM_PHASE_TRUNCATE);
@@ -1823,6 +1820,10 @@ lazy_truncate_heap(Relation onerel, LVRelStats *vacrelstats)
 	 */
 	do
 	{
+		PGRUsage	ru0;
+
+		pg_rusage_init(&ru0);
+
 		/*
 		 * We need full exclusive lock on the relation in order to do
 		 * truncation. If we can't get it, give up rather than waiting --- we