diff --git a/src/core/mainwindow.cpp b/src/core/mainwindow.cpp
index ab54d3dc8..f5d018bfe 100644
--- a/src/core/mainwindow.cpp
+++ b/src/core/mainwindow.cpp
@@ -2537,7 +2537,11 @@ void MainWindow::Raise() {
   activateWindow();
 }
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+bool MainWindow::nativeEvent(const QByteArray &eventType, void *message, qintptr *result) {
+#else
 bool MainWindow::nativeEvent(const QByteArray &eventType, void *message, long *result) {
+#endif
 
   Q_UNUSED(eventType);
   Q_UNUSED(result);
diff --git a/src/core/mainwindow.h b/src/core/mainwindow.h
index bab076022..e67b75e46 100644
--- a/src/core/mainwindow.h
+++ b/src/core/mainwindow.h
@@ -112,7 +112,11 @@ class MainWindow : public QMainWindow, public PlatformInterface {
  protected:
   void keyPressEvent(QKeyEvent *event) override;
   void closeEvent(QCloseEvent *event) override;
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+  bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result) override;
+#else
   bool nativeEvent(const QByteArray &eventType, void *message, long *result) override;
+#endif
 
   // PlatformInterface
   void Activate() override;