1 files changed, 2 insertions, 2 deletions
diff --git a/src/widgets/widgets/qslider.h b/src/widgets/widgets/qslider.h
index 3a528382a7..801a684fdf 100644
--- a/src/widgets/widgets/qslider.h
+++ b/src/widgets/widgets/qslider.h
@@ -61,8 +61,8 @@ public:
     };
     Q_ENUM(TickPosition)
 
-    explicit QSlider(QWidget *parent = 0);
-    explicit QSlider(Qt::Orientation orientation, QWidget *parent = 0);
+    explicit QSlider(QWidget *parent = Q_NULLPTR);
+    explicit QSlider(Qt::Orientation orientation, QWidget *parent = Q_NULLPTR);
 
     ~QSlider();