diff --git a/main.go b/main.go
index 0ff6a60..50762ba 100755
--- a/main.go
+++ b/main.go
@@ -32,7 +32,7 @@ func main() {
 	fs = args.NewArgSet()
 	fs.Append(args.STRING, "p", "port to serve", "8100")
 	fs.Append(args.BOOL, "md", "whether to render markdown as html", true)
-	fs.Append(args.STRING, "md-css", "css to load for md", "./public/bundle.css")
+	fs.Append(args.STRING, "md-css", "css to load for md", "/dev/null")
 	fs.Append(args.STRING, "md-class", "class to wrap md", "phb")
 	fs.Append(args.STRING, "d", "static path to serve", "./public")
 	if err := fs.Parse(); err != nil {