diff --git a/src/backend/utils/time/tqual.c b/src/backend/utils/time/tqual.c
index 94e40c69ae8..c0b8970ff81 100644
--- a/src/backend/utils/time/tqual.c
+++ b/src/backend/utils/time/tqual.c
@@ -848,7 +848,8 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple, Snapshot snapshot,
 
 	if (TransactionIdIsInProgress(HeapTupleHeaderGetXmax(tuple)))
 	{
-		snapshot->xmax = HeapTupleHeaderGetXmax(tuple);
+		if (!(tuple->t_infomask & HEAP_IS_LOCKED))
+			snapshot->xmax = HeapTupleHeaderGetXmax(tuple);
 		return true;
 	}