diff --git a/clientv3/config.go b/clientv3/config.go
index 34cec6d64..494999bdd 100644
--- a/clientv3/config.go
+++ b/clientv3/config.go
@@ -45,7 +45,7 @@ type Config struct {
 	Logger Logger
 }
 
-type YamlConfig struct {
+type yamlConfig struct {
 	Endpoints             []string      `json:"endpoints"`
 	DialTimeout           time.Duration `json:"dial-timeout"`
 	InsecureTransport     bool          `json:"insecure-transport"`
@@ -61,7 +61,7 @@ func configFromFile(fpath string) (*Config, error) {
 		return nil, err
 	}
 
-	yc := &YamlConfig{}
+	yc := &yamlConfig{}
 
 	err = yaml.Unmarshal(b, yc)
 	if err != nil {
diff --git a/clientv3/config_test.go b/clientv3/config_test.go
index 10661671f..d8d86a542 100644
--- a/clientv3/config_test.go
+++ b/clientv3/config_test.go
@@ -32,22 +32,22 @@ var (
 
 func TestConfigFromFile(t *testing.T) {
 	tests := []struct {
-		ym *YamlConfig
+		ym *yamlConfig
 
 		werr bool
 	}{
 		{
-			&YamlConfig{},
+			&yamlConfig{},
 			false,
 		},
 		{
-			&YamlConfig{
+			&yamlConfig{
 				InsecureTransport: true,
 			},
 			false,
 		},
 		{
-			&YamlConfig{
+			&yamlConfig{
 				Keyfile:               privateKeyPath,
 				Certfile:              certPath,
 				CAfile:                caPath,
@@ -56,14 +56,14 @@ func TestConfigFromFile(t *testing.T) {
 			false,
 		},
 		{
-			&YamlConfig{
+			&yamlConfig{
 				Keyfile:  "bad",
 				Certfile: "bad",
 			},
 			true,
 		},
 		{
-			&YamlConfig{
+			&yamlConfig{
 				Keyfile:  privateKeyPath,
 				Certfile: certPath,
 				CAfile:   "bad",