diff --git a/src/backend/access/heap/pruneheap.c b/src/backend/access/heap/pruneheap.c
index e4561bc3a2..2c0912878b 100644
--- a/src/backend/access/heap/pruneheap.c
+++ b/src/backend/access/heap/pruneheap.c
@@ -372,7 +372,6 @@ heap_prune_chain(Relation relation, Buffer buffer, OffsetNumber rootoffnum,
 
 		tup.t_data = htup;
 		tup.t_len = ItemIdGetLength(rootlp);
-		tup.t_tableOid = RelationGetRelid(relation);
 		ItemPointerSet(&(tup.t_self), BufferGetBlockNumber(buffer), rootoffnum);
 
 		if (HeapTupleHeaderIsHeapOnly(htup))