2 files changed, 2 insertions, 2 deletions
diff --git a/src/gui/doc/snippets/draganddrop/dragwidget.h b/src/gui/doc/snippets/draganddrop/dragwidget.h
index 709f9338bf..eb069d73d2 100644
--- a/src/gui/doc/snippets/draganddrop/dragwidget.h
+++ b/src/gui/doc/snippets/draganddrop/dragwidget.h
@@ -66,7 +66,7 @@ class DragWidget : public QFrame
     Q_OBJECT
 
 public:
-    DragWidget(QWidget *parent);
+    explicit DragWidget(QWidget *parent = nullptr);
     void setData(const QString &mimetype, const QByteArray &newData);
 
 signals:
diff --git a/src/gui/doc/snippets/draganddrop/mainwindow.h b/src/gui/doc/snippets/draganddrop/mainwindow.h
index 784371d4af..85581e7909 100644
--- a/src/gui/doc/snippets/draganddrop/mainwindow.h
+++ b/src/gui/doc/snippets/draganddrop/mainwindow.h
@@ -67,7 +67,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    MainWindow(QWidget *parent = 0);
+    explicit MainWindow(QWidget *parent = nullptr);
 
 public slots:
     void setDragResult(const QString &actionText);