diff --git a/ws.go b/ws.go
index 2f1643b..8707e04 100644
--- a/ws.go
+++ b/ws.go
@@ -15,10 +15,10 @@ import (
 
 // WsMessage is a message from or to the api server
 type WsMessage struct {
-	Title    string
-	CallHash string
-	PeerID   string
-	Data     interface{}
+	Title    string      `json:"title"`
+	CallHash string      `json:"callHash"`
+	PeerID   string      `json:"peerId"`
+	Data     interface{} `json:"data"`
 }
 
 var outMsgChan = make(chan interface{})