diff --git a/lib/hx509/.cvsignore b/lib/hx509/.cvsignore
new file mode 100644
index 000000000..5c116ecc7
--- /dev/null
+++ b/lib/hx509/.cvsignore
@@ -0,0 +1,3 @@
+Makefile.in
+hx509-private.h
+hx509-protos.h