diff --git a/vvin.go b/vvin.go
index 6cc3295..a17d322 100644
--- a/vvin.go
+++ b/vvin.go
@@ -51,7 +51,7 @@ func (c *globalCmd) Before() error {
 	return nil
 }
 
-func Start([]string) error {
+func Start(args []string) error {
 	app := gli.NewWith(&globalCmd{})
 	app.Name = "vvin"
 	app.Desc = "Change window properties for Windows"
@@ -59,7 +59,7 @@ func Start([]string) error {
 	app.Usage = ``
 	app.Copyright = "(C) 2019 Shuhei Kubota"
 	app.SuppressErrorOutput = true
-	return app.Run(os.Args)
+	return app.Run(args)
 }
 
 var (