2 files changed, 2 insertions, 2 deletions
diff --git a/examples/widgets/draganddrop/puzzle/pieceslist.h b/examples/widgets/draganddrop/puzzle/pieceslist.h
index 3c6b042b4e..16091f5767 100644
--- a/examples/widgets/draganddrop/puzzle/pieceslist.h
+++ b/examples/widgets/draganddrop/puzzle/pieceslist.h
@@ -48,7 +48,7 @@ class PiecesList : public QListWidget
     Q_OBJECT
 
 public:
-    PiecesList(int pieceSize, QWidget *parent = 0);
+    explicit PiecesList(int pieceSize, QWidget *parent = 0);
     void addPiece(QPixmap pixmap, QPoint location);
 
 protected:
diff --git a/examples/widgets/draganddrop/puzzle/puzzlewidget.h b/examples/widgets/draganddrop/puzzle/puzzlewidget.h
index 1c0fc77a5f..98056ec217 100644
--- a/examples/widgets/draganddrop/puzzle/puzzlewidget.h
+++ b/examples/widgets/draganddrop/puzzle/puzzlewidget.h
@@ -57,7 +57,7 @@ class PuzzleWidget : public QWidget
     Q_OBJECT
 
 public:
-    PuzzleWidget(int imageSize, QWidget *parent = 0);
+    explicit PuzzleWidget(int imageSize, QWidget *parent = 0);
     void clear();
 
     int pieceSize() const;