diff --git a/cmd/flags/config.go b/cmd/flags/config.go
index e10deadc..ecb63ab9 100644
--- a/cmd/flags/config.go
+++ b/cmd/flags/config.go
@@ -6,8 +6,6 @@ var (
 
 	LogStd bool
 
-	ConfigFile string
-
 	SkipEnv bool
 
 	SkipConfig bool
diff --git a/cmd/root.go b/cmd/root.go
index afacc2ce..43da85c8 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -40,7 +40,6 @@ func init() {
 		home = "~"
 	}
 	RootCmd.PersistentFlags().StringVar(&flags.DataDir, "data-dir", filepath.Join(home, ".synctv"), "data dir")
-	RootCmd.PersistentFlags().StringVarP(&flags.ConfigFile, "config", "f", "", "config file path")
 }
 
 func init() {
diff --git a/internal/bootstrap/config.go b/internal/bootstrap/config.go
index c48c0aba..7988bf35 100644
--- a/internal/bootstrap/config.go
+++ b/internal/bootstrap/config.go
@@ -25,20 +25,16 @@ func InitConfig(ctx context.Context) (err error) {
 	}
 	conf.Conf = conf.DefaultConfig()
 	if !flags.SkipConfig {
-		if flags.ConfigFile == "" {
-			flags.ConfigFile = filepath.Join(flags.DataDir, "config.yaml")
-		} else {
-			flags.ConfigFile, err = utils.OptFilePath(flags.ConfigFile)
-			if err != nil {
-				log.Fatalf("config file path error: %v", err)
-			}
+		configFile, err := utils.OptFilePath(filepath.Join(flags.DataDir, "config.yaml"))
+		if err != nil {
+			log.Fatalf("config file path error: %v", err)
 		}
-		err = confFromConfig(flags.ConfigFile, conf.Conf)
+		err = confFromConfig(configFile, conf.Conf)
 		if err != nil {
 			log.Fatalf("load config from file error: %v", err)
 		}
-		log.Infof("load config success from file: %s", flags.ConfigFile)
-		if err = restoreConfig(flags.ConfigFile, conf.Conf); err != nil {
+		log.Infof("load config success from file: %s", configFile)
+		if err = restoreConfig(configFile, conf.Conf); err != nil {
 			log.Warnf("restore config error: %v", err)
 		} else {
 			log.Info("restore config success")