diff --git a/README.md b/README.md
index 9eda82a..99e3d56 100644
--- a/README.md
+++ b/README.md
@@ -34,5 +34,5 @@ tsdb mock
 tsdb run [<flags>]
     Run the tsdb server.
     example:
-    timelite tsdb run --config-path="./storage/conf" --storage-path="./storage/tsdb" --host="0.0.0.0:9090"
+    timelite tsdb run --config-file="config.json" --storage-path="./storage/tsdb" --host="0.0.0.0:9090"
 ```
diff --git a/conf/config.go b/conf/config.go
index ad1d60e..becb789 100644
--- a/conf/config.go
+++ b/conf/config.go
@@ -81,11 +81,11 @@ func GetPromConfig(host string) *config.Config {
 	return promConf
 }
 
-func InitConfig(configPath, storagePath, host string) error {
-	if configPath != "" {
-		if _, err := os.Stat(configPath); !os.IsNotExist(err) {
+func InitConfig(configFile, storagePath, host string) error {
+	if configFile != "" {
+		if _, err := os.Stat(configFile); !os.IsNotExist(err) {
 			// read config from file
-			err := GetConfig(configPath)
+			err := GetConfig(configFile)
 			if err != nil {
 				// if file not exist, create it
 				return err
@@ -93,7 +93,7 @@ func InitConfig(configPath, storagePath, host string) error {
 		}
 	}
 
-	dashboardPath := filepath.Join(filepath.Dir(configPath), "dashboards")
+	dashboardPath := filepath.Join(filepath.Dir(configFile), "dashboards")
 	logPath := filepath.Join(storagePath, "log")
 
 	promConf := GetPromConfig(host)
@@ -105,13 +105,13 @@ func InitConfig(configPath, storagePath, host string) error {
 		PromConfig:    promConf,
 		Host:          host,
 	}
-	return SaveConfig(configPath)
+	return SaveConfig(configFile)
 
 }
 
-func SaveConfig(configPath string) error {
-	if _, err := os.Stat(filepath.Dir(configPath)); os.IsNotExist(err) {
-		err = os.MkdirAll(filepath.Dir(configPath), 0755)
+func SaveConfig(configFile string) error {
+	if _, err := os.Stat(filepath.Dir(configFile)); os.IsNotExist(err) {
+		err = os.MkdirAll(filepath.Dir(configFile), 0755)
 		if err != nil {
 			return fmt.Errorf("failed to mkdir config dir: %v", err)
 		}
@@ -120,5 +120,5 @@ func SaveConfig(configPath string) error {
 	if err != nil {
 		return err
 	}
-	return os.WriteFile(configPath, bytes, 0644)
+	return os.WriteFile(configFile, bytes, 0644)
 }
diff --git a/main.go b/main.go
index 8cea939..5abf603 100644
--- a/main.go
+++ b/main.go
@@ -32,7 +32,7 @@ func main() {
 	storagePath := runTSDBCmd.Flag("storage-path", "The path to store the tsdb data.").Default("./storage/tsdb").
 		String()
 
-	configPath := runTSDBCmd.Flag("config-path", "The path to store the tsdb data.").Default("./storage/conf").String()
+	configFile := runTSDBCmd.Flag("config-file", "The config file path.").Default("./storage/conf").String()
 
 	parseCmd := kingpin.MustParse(app.Parse(os.Args[1:]))
 
@@ -50,9 +50,9 @@ func main() {
 	case tsdbMockCmd.FullCommand():
 		util.PromTestServer()
 	case runTSDBCmd.FullCommand():
-		prepareTSDBEnv(*configPath, *storagePath, *host)
+		prepareTSDBEnv(*configFile, *storagePath, *host)
 		// save config
-		conf.SaveConfig(filepath.Join(*configPath, "config.json"))
+		conf.SaveConfig(*configFile)
 
 		engine, err := engine.NewEngine(conf.DefaultConfig.StoragePath, conf.DefaultConfig.LogPath)
 		if err != nil {
@@ -65,8 +65,8 @@ func main() {
 	}
 }
 
-func prepareTSDBEnv(configPath, storagePath, host string) {
-	err := conf.InitConfig(configPath, storagePath, host)
+func prepareTSDBEnv(configFile, storagePath, host string) {
+	err := conf.InitConfig(configFile, storagePath, host)
 	if err != nil {
 		panic(err)
 	}