diff --git a/packages/DOS/.cvsignore b/packages/DOS/.cvsignore
new file mode 100644
index 0000000000000000000000000000000000000000..282522db0342d8750454b3dc162493b5fc709cc8
--- /dev/null
+++ b/packages/DOS/.cvsignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in