diff --git a/src/backend/backup/walsummary.c b/src/backend/backup/walsummary.c
index 4ee510092f99..4cd1824fbc6b 100644
--- a/src/backend/backup/walsummary.c
+++ b/src/backend/backup/walsummary.c
@@ -214,7 +214,7 @@ OpenWalSummaryFile(WalSummaryFile *ws, bool missing_ok)
 			 LSN_FORMAT_ARGS(ws->end_lsn));
 
 	file = PathNameOpenFile(path, O_RDONLY);
-	if (file < 0 && (errno != EEXIST || !missing_ok))
+	if (file < 0 && (errno != ENOENT || !missing_ok))
 		ereport(ERROR,
 				(errcode_for_file_access(),
 				 errmsg("could not open file \"%s\": %m", path)));