diff --git a/GraphicsView/include/CGAL/Qt/GraphicsViewInput.h b/GraphicsView/include/CGAL/Qt/GraphicsViewInput.h
index e20947b0845..bf5cb4fba76 100644
--- a/GraphicsView/include/CGAL/Qt/GraphicsViewInput.h
+++ b/GraphicsView/include/CGAL/Qt/GraphicsViewInput.h
@@ -1,5 +1,5 @@
-#ifndef CGAL_QT_RAPHICS_VIEW_INPUT_H
-#define CGAL_QT_RAPHICS_VIEW_INPUT_H
+#ifndef CGAL_QT_GRAPHICS_VIEW_INPUT_H
+#define CGAL_QT_GRAPHICS_VIEW_INPUT_H
 
 #include <CGAL/Object.h>
 #include <QObject>
@@ -17,9 +17,10 @@ public:
 
 signals:
   void generate(CGAL::Object o);
+  void modelChanged();
 };
 
 } // namespace Qt
 } // namespace CGAL
 
-#endif // CGAL_QT_RAPHICS_VIEW_INPUT_H
+#endif // CGAL_QT_GRAPHICS_VIEW_INPUT_H
diff --git a/GraphicsView/include/CGAL/Qt/TriangulationGraphicsItem.h b/GraphicsView/include/CGAL/Qt/TriangulationGraphicsItem.h
index 4180d3bdcd5..ae3870774b6 100644
--- a/GraphicsView/include/CGAL/Qt/TriangulationGraphicsItem.h
+++ b/GraphicsView/include/CGAL/Qt/TriangulationGraphicsItem.h
@@ -25,6 +25,7 @@ public:
   void modelChanged();
 
 public:
+
   QRectF boundingRect() const;
   
   void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);