diff --git a/cmd/connect.go b/cmd/connect.go
index 9a129f2..6a4988e 100644
--- a/cmd/connect.go
+++ b/cmd/connect.go
@@ -24,6 +24,7 @@ const (
 )
 
 func setProject(env string) string {
+	// TODO: get project list with gcloud sdk
 	switch env {
 	case "dev":
 		project = "beecash-staging"
diff --git a/cmd/root.go b/cmd/root.go
index 0e02261..c3b5fe7 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -21,6 +21,7 @@ var rootCmd = &cobra.Command{
 var connectCmd = &cobra.Command{
 	Use:   "connect",
 	Short: "connect to cloudsql instance",
+	Args:  cobra.NoArgs,
 	Run: func(cmd *cobra.Command, args []string) {
 		env, _ := cmd.Flags().GetString("env")
 		port, _ := cmd.Flags().GetInt("port")
@@ -38,7 +39,7 @@ var connectCmd = &cobra.Command{
 var disconnectCmd = &cobra.Command{
 	Use:   "disconnect",
 	Short: "disconnect cloudsql instance proxy",
-	// Args:  cobra.ExactArgs(2),
+	Args:  cobra.NoArgs,
 	Run: func(cmd *cobra.Command, args []string) {
 		disconnectInstance()
 	},