diff --git a/handler/device.go b/handler/device.go
index 83424bc..0bf7d3f 100644
--- a/handler/device.go
+++ b/handler/device.go
@@ -256,7 +256,7 @@ func subscribeAndHandleMessages(ws *websocket.Conn, device_id int) {
 			msgObj.From_user_id = -1
 			res3, _ = json.Marshal(msgObj)
 		}
-		fmt.Println("send message to client length:", len(res3))
+		//fmt.Println("send message to client length:", len(res3))
 		err2 := ws.WriteMessage(websocket.TextMessage, res3)
 		if err2 != nil {
 			clientsMux.Lock()