diff --git a/MANIFEST.SKIP b/MANIFEST.SKIP
index 4b50038..6e65334 100644
--- a/MANIFEST.SKIP
+++ b/MANIFEST.SKIP
@@ -1,5 +1,6 @@
 ^blib/
 ^Makefile$
+^Makefile\.old$
 ^Build$
 ^_build/
 ^MANIFEST\.bak$