1 files changed, 3 insertions, 3 deletions
diff --git a/src/widgets/kernel/qboxlayout.h b/src/widgets/kernel/qboxlayout.h
index 5ce9ca26f6..10209e05c9 100644
--- a/src/widgets/kernel/qboxlayout.h
+++ b/src/widgets/kernel/qboxlayout.h
@@ -54,7 +54,7 @@ public:
     enum Direction { LeftToRight, RightToLeft, TopToBottom, BottomToTop,
                      Down = TopToBottom, Up = BottomToTop };
 
-    explicit QBoxLayout(Direction, QWidget *parent = 0);
+    explicit QBoxLayout(Direction, QWidget *parent = Q_NULLPTR);
 
     ~QBoxLayout();
 
@@ -64,7 +64,7 @@ public:
     void addSpacing(int size);
     void addStretch(int stretch = 0);
     void addSpacerItem(QSpacerItem *spacerItem);
-    void addWidget(QWidget *, int stretch = 0, Qt::Alignment alignment = 0);
+    void addWidget(QWidget *, int stretch = 0, Qt::Alignment alignment = Qt::Alignment());
     void addLayout(QLayout *layout, int stretch = 0);
     void addStrut(int);
     void addItem(QLayoutItem *) Q_DECL_OVERRIDE;
@@ -72,7 +72,7 @@ public:
     void insertSpacing(int index, int size);
     void insertStretch(int index, int stretch = 0);
     void insertSpacerItem(int index, QSpacerItem *spacerItem);
-    void insertWidget(int index, QWidget *widget, int stretch = 0, Qt::Alignment alignment = 0);
+    void insertWidget(int index, QWidget *widget, int stretch = 0, Qt::Alignment alignment = Qt::Alignment());
     void insertLayout(int index, QLayout *layout, int stretch = 0);
     void insertItem(int index, QLayoutItem *);