2 files changed, 3 insertions, 2 deletions
diff --git a/examples/widgets/widgets/charactermap/mainwindow.cpp b/examples/widgets/widgets/charactermap/mainwindow.cpp
index d3ac55483c..76bd8f7799 100644
--- a/examples/widgets/widgets/charactermap/mainwindow.cpp
+++ b/examples/widgets/widgets/charactermap/mainwindow.cpp
@@ -57,7 +57,8 @@
 
 Q_DECLARE_METATYPE(QFontComboBox::FontFilter)
 
-MainWindow::MainWindow()
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
 {
     QMenu *fileMenu = menuBar()->addMenu(tr("File"));
     fileMenu->addAction(tr("Quit"), this, &QWidget::close);
diff --git a/examples/widgets/widgets/charactermap/mainwindow.h b/examples/widgets/widgets/charactermap/mainwindow.h
index eac16b35fa..79fe9f9cc8 100644
--- a/examples/widgets/widgets/charactermap/mainwindow.h
+++ b/examples/widgets/widgets/charactermap/mainwindow.h
@@ -70,7 +70,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    MainWindow();
+    MainWindow(QWidget *parent = nullptr);
 
 public slots:
     void filterChanged(int);