1 files changed, 1 insertions, 1 deletions
diff --git a/src/widgets/graphicsview/qgraphicslayout.h b/src/widgets/graphicsview/qgraphicslayout.h
index ebd90735f1..84a8d97943 100644
--- a/src/widgets/graphicsview/qgraphicslayout.h
+++ b/src/widgets/graphicsview/qgraphicslayout.h
@@ -48,7 +48,7 @@ class QGraphicsWidget;
 class Q_WIDGETS_EXPORT QGraphicsLayout : public QGraphicsLayoutItem
 {
 public:
-    QGraphicsLayout(QGraphicsLayoutItem *parent = 0);
+    QGraphicsLayout(QGraphicsLayoutItem *parent = Q_NULLPTR);
     ~QGraphicsLayout();
 
     void setContentsMargins(qreal left, qreal top, qreal right, qreal bottom);