diff --git a/cmd/frps/root.go b/cmd/frps/root.go
index caad6cd2..95825aa9 100644
--- a/cmd/frps/root.go
+++ b/cmd/frps/root.go
@@ -88,7 +88,7 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&logFile, "log_file", "", "console", "log file")
 	rootCmd.PersistentFlags().StringVarP(&logLevel, "log_level", "", "info", "log level")
 	rootCmd.PersistentFlags().Int64VarP(&logMaxDays, "log_max_days", "", 3, "log max days")
-        rootCmd.PersistentFlags().StringVarP(&logDurationTypes, "log_duration_types", "", "ssh,rdp", "log duration types")
+	rootCmd.PersistentFlags().StringVarP(&logDurationTypes, "log_duration_types", "", "ssh,rdp", "log duration types")
 	rootCmd.PersistentFlags().BoolVarP(&disableLogColor, "disable_log_color", "", false, "disable log color in console")
 
 	rootCmd.PersistentFlags().StringVarP(&token, "token", "t", "", "auth token")