diff --git a/QChatClient/chatwindow.h b/QChatClient/chatwindow.h
index 9c2f1e7..743223c 100644
--- a/QChatClient/chatwindow.h
+++ b/QChatClient/chatwindow.h
@@ -18,6 +18,7 @@ class ChatWindow : public QMainWindow
 public:
     explicit ChatWindow(QString nick, QWidget *parent = 0);
     void notifyPrint(string& msg);
+    void notifyClose();
     ~ChatWindow();
 
 public slots: