diff --git a/internal/configs/api_config.go b/internal/configs/api_config.go
index 699ca20..a7f9f2a 100644
--- a/internal/configs/api_config.go
+++ b/internal/configs/api_config.go
@@ -14,9 +14,9 @@ type APIConfig struct {
 	OldRPC struct {
 		Endpoints     []string `yaml:"endpoints" json:"endpoints"`
 		DisableUpdate bool     `yaml:"disableUpdate" json:"disableUpdate"`
-	} `yaml:"rpc" json:"rpc"`
+	} `yaml:"rpc,omitempty" json:"rpc"`
 
-	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" json:"nodeId"`
 	Secret           string   `yaml:"secret" json:"secret"`
diff --git a/internal/configs/api_config_test.go b/internal/configs/api_config_test.go
index d1c4bfb..e6efe20 100644
--- a/internal/configs/api_config_test.go
+++ b/internal/configs/api_config_test.go
@@ -3,6 +3,7 @@ package configs_test
 import (
 	"github.com/TeaOSLab/EdgeNode/internal/configs"
 	_ "github.com/iwind/TeaGo/bootstrap"
+	"gopkg.in/yaml.v3"
 	"testing"
 )
 
@@ -12,4 +13,10 @@ func TestLoadAPIConfig(t *testing.T) {
 		t.Fatal(err)
 	}
 	t.Logf("%+v", config)
+
+	configData, err := yaml.Marshal(config)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(string(configData))
 }