2 files changed, 3 insertions, 3 deletions
diff --git a/examples/widgets/widgets/scribble/mainwindow.cpp b/examples/widgets/widgets/scribble/mainwindow.cpp
index d54e5ce0f9..b8d01d505c 100644
--- a/examples/widgets/widgets/scribble/mainwindow.cpp
+++ b/examples/widgets/widgets/scribble/mainwindow.cpp
@@ -54,9 +54,9 @@
 #include "scribblearea.h"
 
 //! [0]
-MainWindow::MainWindow()
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent), scribbleArea(new ScribbleArea(this))
 {
-    scribbleArea = new ScribbleArea;
     setCentralWidget(scribbleArea);
 
     createActions();
diff --git a/examples/widgets/widgets/scribble/mainwindow.h b/examples/widgets/widgets/scribble/mainwindow.h
index 9e0ddaff71..e57ff065ac 100644
--- a/examples/widgets/widgets/scribble/mainwindow.h
+++ b/examples/widgets/widgets/scribble/mainwindow.h
@@ -62,7 +62,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    MainWindow();
+    MainWindow(QWidget *parent = nullptr);
 
 protected:
     void closeEvent(QCloseEvent *event) override;