diff --git a/pkg/naming/etcd/etcd.go b/pkg/naming/etcd/etcd.go
index f64f107f4..338b216eb 100644
--- a/pkg/naming/etcd/etcd.go
+++ b/pkg/naming/etcd/etcd.go
@@ -19,9 +19,9 @@ import (
 )
 
 var (
-	//Prefix is a etcd globe key prefix
-	Endpoints string
-	Prefix    string
+	//etcdPrefix is a etcd globe key prefix
+	endpoints  string
+	etcdPrefix string
 
 	RegisterTTL = 30
 )
@@ -39,8 +39,8 @@ func init() {
 
 func addFlag(fs *flag.FlagSet) {
 	// env
-	fs.StringVar(&Endpoints, "etcd.endpoints", os.Getenv("ETCD_ENDPOINTS"), "etcd.endpoints is etcd endpoints. value: 127.0.0.1:2379,127.0.0.2:2379 etc.")
-	fs.StringVar(&Prefix, "etcd.prefix", defaultString("ETCD_PREFIX", "kratos_etcd"), "etcd globe key prefix or use ETCD_PREFIX env variable. value etcd_prefix etc.")
+	fs.StringVar(&endpoints, "etcd.endpoints", os.Getenv("ETCD_ENDPOINTS"), "etcd.endpoints is etcd endpoints. value: 127.0.0.1:2379,127.0.0.2:2379 etc.")
+	fs.StringVar(&etcdPrefix, "etcd.prefix", defaultString("ETCD_PREFIX", "kratos_etcd"), "etcd globe key prefix or use ETCD_PREFIX env variable. value etcd_prefix etc.")
 }
 
 func defaultString(env, value string) string {
@@ -91,11 +91,11 @@ type Resolve struct {
 // New is new a etcdbuilder
 func New(c *clientv3.Config) (e *EtcdBuilder, err error) {
 	if c == nil {
-		if Endpoints == "" {
-			panic(fmt.Errorf("invalid etcd config endpoints:%+v", Endpoints))
+		if endpoints == "" {
+			panic(fmt.Errorf("invalid etcd config endpoints:%+v", endpoints))
 		}
 		c = &clientv3.Config{
-			Endpoints:   strings.Split(Endpoints, ","),
+			Endpoints:   strings.Split(endpoints, ","),
 			DialTimeout: time.Second * 30,
 		}
 	}
@@ -227,7 +227,7 @@ func (e *EtcdBuilder) unregister(ins *naming.Instance) (err error) {
 }
 
 func (e *EtcdBuilder) keyPrefix(ins *naming.Instance) string {
-	return fmt.Sprintf("/%s/%s/%s", Prefix, ins.AppID, ins.Hostname)
+	return fmt.Sprintf("/%s/%s/%s", etcdPrefix, ins.AppID, ins.Hostname)
 }
 
 // Close stop all running process including etcdfetch and register
@@ -237,7 +237,7 @@ func (e *EtcdBuilder) Close() error {
 }
 func (a *appInfo) watch(appID string) {
 	_ = a.fetchstore(appID)
-	prefix := fmt.Sprintf("/%s/%s/", Prefix, appID)
+	prefix := fmt.Sprintf("/%s/%s/", etcdPrefix, appID)
 	rch := a.e.cli.Watch(a.e.ctx, prefix, clientv3.WithPrefix())
 	for wresp := range rch {
 		for _, ev := range wresp.Events {
@@ -249,7 +249,7 @@ func (a *appInfo) watch(appID string) {
 }
 
 func (a *appInfo) fetchstore(appID string) (err error) {
-	prefix := fmt.Sprintf("/%s/%s/", Prefix, appID)
+	prefix := fmt.Sprintf("/%s/%s/", etcdPrefix, appID)
 	resp, err := a.e.cli.Get(a.e.ctx, prefix, clientv3.WithPrefix())
 	if err != nil {
 		log.Error("etcd: fetch client.Get(%s) error(%+v)", prefix, err)
diff --git a/pkg/naming/etcd/etcd_test.go b/pkg/naming/etcd/etcd_test.go
index 85cbfe69b..445958725 100644
--- a/pkg/naming/etcd/etcd_test.go
+++ b/pkg/naming/etcd/etcd_test.go
@@ -42,7 +42,6 @@ func TestNew(t *testing.T) {
 		Zone:     "z1",
 	})
 
-	fmt.Println(2222)
 	app2Cancel, err := builder.Register(context.Background(), &naming.Instance{
 		AppID:    "app2",
 		Hostname: "h5",