diff --git a/mainwindow.h b/mainwindow.h
index 37f4e03..88f6ca1 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -21,6 +21,7 @@ class MainWindow : public QMainWindow {
 
 protected:
     void customEvent(QEvent *event) override;
+    // bool eventFilter(QObject *obj, QEvent *ev) override;
 
 public:
     MainWindow(hwinf *hw, Worker *worker, Update *update, QWidget *parent = nullptr);