diff --git a/internal/configs/api_config.go b/internal/configs/api_config.go
index 2783d841..d5fdf3e5 100644
--- a/internal/configs/api_config.go
+++ b/internal/configs/api_config.go
@@ -17,9 +17,9 @@ type APIConfig struct {
 	OldRPC struct {
 		Endpoints     []string `yaml:"endpoints"`
 		DisableUpdate bool     `yaml:"disableUpdate"`
-	} `yaml:"rpc"`
+	} `yaml:"rpc,omitempty"`
 
-	RPCEndpoints     []string `yaml:"rpc.endpoints" json:"rpc.endpoints"`
+	RPCEndpoints     []string `yaml:"rpc.endpoints,flow" json:"rpc.endpoints"`
 	RPCDisableUpdate bool     `yaml:"rpc.disableUpdate" json:"rpc.disableUpdate"`
 
 	NodeId string `yaml:"nodeId"`
diff --git a/internal/configs/api_config_test.go b/internal/configs/api_config_test.go
index a99e9ff4..8fe74063 100644
--- a/internal/configs/api_config_test.go
+++ b/internal/configs/api_config_test.go
@@ -2,6 +2,7 @@ package configs
 
 import (
 	_ "github.com/iwind/TeaGo/bootstrap"
+	"gopkg.in/yaml.v3"
 	"testing"
 )
 
@@ -11,10 +12,16 @@ func TestLoadAPIConfig(t *testing.T) {
 		t.Fatal(err)
 	}
 	t.Log(config)
+
+	configData, err := yaml.Marshal(config)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(string(configData))
 }
 
 func TestAPIConfig_WriteFile(t *testing.T) {
-	config := &APIConfig{}
+	var config = &APIConfig{}
 	err := config.WriteFile("/tmp/api_config.yaml")
 	if err != nil {
 		t.Fatal(err)