diff --git a/td.go b/td.go
index 49fcf61..f4bc428 100644
--- a/td.go
+++ b/td.go
@@ -35,7 +35,7 @@ func ListenMQ(c *tdlib.Client, msgs <-chan TGCommand) {
 			time.Sleep(time.Until(lastOwnTDMsg.Add(time.Second)))
 			now = time.Now()
 		}
-		b := json.Marshal(m)
+		b, err := json.Marshal(m)
 		log.Printf("New MQ message :\n%s\n", string(b))
 		switch m.Type {
 		case commandSendMsg: