2 files changed, 2 insertions, 2 deletions
diff --git a/examples/widgets/widgets/calculator/button.h b/examples/widgets/widgets/calculator/button.h
index 057640700f..7c6f26867f 100644
--- a/examples/widgets/widgets/calculator/button.h
+++ b/examples/widgets/widgets/calculator/button.h
@@ -59,7 +59,7 @@ class Button : public QToolButton
     Q_OBJECT
 
 public:
-    explicit Button(const QString &text, QWidget *parent = 0);
+    explicit Button(const QString &text, QWidget *parent = nullptr);
 
     QSize sizeHint() const override;
 };
diff --git a/examples/widgets/widgets/calculator/calculator.h b/examples/widgets/widgets/calculator/calculator.h
index 6d7e336347..937de185e7 100644
--- a/examples/widgets/widgets/calculator/calculator.h
+++ b/examples/widgets/widgets/calculator/calculator.h
@@ -64,7 +64,7 @@ class Calculator : public QWidget
     Q_OBJECT
 
 public:
-    Calculator(QWidget *parent = 0);
+    Calculator(QWidget *parent = nullptr);
 
 private slots:
     void digitClicked();