diff --git a/cmd/frps/root.go b/cmd/frps/root.go
index c2732899..677183a7 100644
--- a/cmd/frps/root.go
+++ b/cmd/frps/root.go
@@ -38,7 +38,7 @@ var (
 )
 
 func init() {
-	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "./frpcs.toml", "config file of frps")
+	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "./frps.toml", "config file of frps")
 	rootCmd.PersistentFlags().BoolVarP(&showVersion, "version", "v", false, "version of frps")
 	rootCmd.PersistentFlags().BoolVarP(&strictConfigMode, "strict_config", "", true, "strict config parsing mode, unknown fields will cause errors")