1 files changed, 2 insertions, 2 deletions
diff --git a/src/widgets/widgets/qscrollbar.h b/src/widgets/widgets/qscrollbar.h
index 5934469045..4af5fb4a55 100644
--- a/src/widgets/widgets/qscrollbar.h
+++ b/src/widgets/widgets/qscrollbar.h
@@ -49,8 +49,8 @@ class Q_WIDGETS_EXPORT QScrollBar : public QAbstractSlider
 {
     Q_OBJECT
 public:
-    explicit QScrollBar(QWidget *parent=0);
-    explicit QScrollBar(Qt::Orientation, QWidget *parent=0);
+    explicit QScrollBar(QWidget *parent = Q_NULLPTR);
+    explicit QScrollBar(Qt::Orientation, QWidget *parent = Q_NULLPTR);
     ~QScrollBar();
 
     QSize sizeHint() const Q_DECL_OVERRIDE;