1 files changed, 1 insertions, 1 deletions
diff --git a/examples/widgets/itemviews/simpledommodel/mainwindow.h b/examples/widgets/itemviews/simpledommodel/mainwindow.h
index 938a1c54c1..b3f8d77f35 100644
--- a/examples/widgets/itemviews/simpledommodel/mainwindow.h
+++ b/examples/widgets/itemviews/simpledommodel/mainwindow.h
@@ -65,7 +65,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    MainWindow();
+    MainWindow(QWidget *parent = nullptr);
 
 public slots:
     void openFile();