diff --git a/src/include/access/heapam.h b/src/include/access/heapam.h
index 9dab35551e..5b07875740 100644
--- a/src/include/access/heapam.h
+++ b/src/include/access/heapam.h
@@ -213,7 +213,6 @@ extern HTSV_Result HeapTupleSatisfiesVacuumHorizon(HeapTuple htup, Buffer buffer
 extern void HeapTupleSetHintBits(HeapTupleHeader tuple, Buffer buffer,
 								 uint16 infomask, TransactionId xid);
 extern bool HeapTupleHeaderIsOnlyLocked(HeapTupleHeader tuple);
-extern bool XidInMVCCSnapshot(TransactionId xid, Snapshot snapshot);
 extern bool HeapTupleIsSurelyDead(HeapTuple htup,
 								  struct GlobalVisState *vistest);