diff --git a/cmd/mstdn/main.go b/cmd/mstdn/main.go
index da9db94..b9fcbf0 100644
--- a/cmd/mstdn/main.go
+++ b/cmd/mstdn/main.go
@@ -172,7 +172,7 @@ func makeApp() *cli.App {
 	app.Version = "0.0.1"
 	app.Flags = []cli.Flag{
 		cli.StringFlag{
-			Name:  "a",
+			Name:  "profile",
 			Usage: "profile name",
 			Value: "",
 		},
diff --git a/cmd/mstdn/main_test.go b/cmd/mstdn/main_test.go
index f4fdf04..258cd79 100644
--- a/cmd/mstdn/main_test.go
+++ b/cmd/mstdn/main_test.go
@@ -2,10 +2,13 @@ package main
 
 import (
 	"encoding/json"
+	"flag"
 	"io/ioutil"
 	"log"
 	"os"
 	"testing"
+
+	"github.com/urfave/cli"
 )
 
 func TestReadFileFile(t *testing.T) {
@@ -72,7 +75,11 @@ func TestGetConfig(t *testing.T) {
 		os.Setenv("APPDATA", appdata)
 	}()
 
-	file, config, err := getConfig()
+	app := makeApp()
+	set := flag.NewFlagSet("test", 0)
+	set.Parse([]string{"mstdn", "-profile", ""})
+	c := cli.NewContext(app, set, nil)
+	file, config, err := getConfig(c)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -97,7 +104,7 @@ func TestGetConfig(t *testing.T) {
 	if err != nil {
 		log.Fatal(err)
 	}
-	file, config, err = getConfig()
+	file, config, err = getConfig(c)
 	if err != nil {
 		t.Fatal(err)
 	}