diff --git a/handler/private.go b/handler/private.go
index c550b47..d1aa93c 100644
--- a/handler/private.go
+++ b/handler/private.go
@@ -126,6 +126,9 @@ func HandshakeHandler(ctx *gin.Context) {
 	CheckErr(err)
 	randKey := params.Get("randkey")
 	deviceId := params.Get("deviceid")
+	if deviceId == "" {
+		deviceId = ctx.Request.Header.Get("X-DEVICEID")
+	}
 	// fmt.Println(randKey)
 	// fmt.Println(deviceId)