diff --git a/types/etcd.go b/types/etcd.go
index c8be9c7..3175e65 100644
--- a/types/etcd.go
+++ b/types/etcd.go
@@ -1,12 +1,12 @@
 package types
 
 type Etcd struct {
-	Endpoints []string `json:"endpoints"`
-	Tls       EtcdTls  `json:",optional"`
+	Endpoints []string `yaml:"Endpoints"`
+	Tls       EtcdTls  `yaml:"Tls"`
 }
 
 type EtcdTls struct {
-	Ca      string `json:"ca,optional"`
-	Cert    string `json:"cert,optional"`
-	CertKey string `json:"cert_key,optional" `
+	Ca      string `yaml:"Ca"`
+	Cert    string `yaml:"Cert"`
+	CertKey string `yaml:"CertKey" `
 }