diff --git a/src/backend/replication/logical/reorderbuffer.c b/src/backend/replication/logical/reorderbuffer.c
index 7ff6f9b..a6d44d5 100644
--- a/src/backend/replication/logical/reorderbuffer.c
+++ b/src/backend/replication/logical/reorderbuffer.c
@@ -2135,7 +2135,10 @@ ReorderBufferSerializeChange(ReorderBuffer *rb, ReorderBufferTXN *txn,
 
 	if (write(fd, rb->outbuf, ondisk->size) != ondisk->size)
 	{
+		int save_errno = errno;
+
 		CloseTransientFile(fd);
+		errno = save_errno;
 		ereport(ERROR,
 				(errcode_for_file_access(),
 				 errmsg("could not write to data file for XID %u: %m",
@@ -2864,7 +2867,8 @@ ApplyLogicalMappingFile(HTAB *tuplecid_data, Oid relid, const char *fname)
 	fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0);
 	if (fd < 0)
 		ereport(ERROR,
-				(errmsg("could not open file \"%s\": %m", path)));
+				(errcode_for_file_access(),
+				 errmsg("could not open file \"%s\": %m", path)));
 
 	while (true)
 	{