diff --git a/process/message_sender.go b/process/message_sender.go
index f6d071b..0a2935a 100644
--- a/process/message_sender.go
+++ b/process/message_sender.go
@@ -101,6 +101,10 @@ func (s *sender) sendToHost(to, from, host string, content []byte) error {
 	if err != nil {
 		return err
 	}
+	err = writeCloser.Close()
+	if err != nil {
+		return err
+	}
 	return client.Quit()
 }