diff --git a/protocol/json/client.go b/protocol/json/client.go
index 955656d..0a0adea 100644
--- a/protocol/json/client.go
+++ b/protocol/json/client.go
@@ -110,17 +110,28 @@ func newClientCodecResponseOrNotify(r io.Reader, encoder encode.Encoder) (protoc
 
 	ccrn := retainClientCodecResponseOrNotify()
 
-	if res, err := newClientCodecResponse(raw); nil != err {
-		notify, err := newClientCodecNotify(raw)
+	if notify, err := newClientCodecNotify(raw); nil != err {
+		res, err := newClientCodecResponse(raw)
 		if nil != err {
 			releaseClientCodecResponseOrNotify(ccrn)
 			return nil, fmt.Errorf("Is not response or notification [%v]", raw)
 		}
-		ccrn.notify = notify
-	} else {
 		ccrn.response = res
+	} else {
+		ccrn.notify = notify
 	}
 
+	// if res, err := newClientCodecResponse(raw); nil != err {
+	// 	notify, err := newClientCodecNotify(raw)
+	// 	if nil != err {
+	// 		releaseClientCodecResponseOrNotify(ccrn)
+	// 		return nil, fmt.Errorf("Is not response or notification [%v]", raw)
+	// 	}
+	// 	ccrn.notify = notify
+	// } else {
+	// 	ccrn.response = res
+	// }
+
 	return ccrn, nil
 }
 
diff --git a/protocol/json/client_notify.go b/protocol/json/client_notify.go
index a7a057d..783227b 100644
--- a/protocol/json/client_notify.go
+++ b/protocol/json/client_notify.go
@@ -23,7 +23,7 @@ func newClientCodecNotify(raw json.RawMessage) (protocol.ClientCodecNotify, erro
 	}
 	if "" == ccn.notify.Method {
 		releaseClientCodecNotify(ccn)
-		return nil, fmt.Errorf("This is not ClientNotify")
+		return nil, fmt.Errorf("This is not Client Notify")
 	}
 
 	if ccn.notify.Version != Version {