diff --git a/examples/osgviewerQt/osgviewerQt.cpp b/examples/osgviewerQt/osgviewerQt.cpp
index ee30256a9..e2e1f3fcc 100644
--- a/examples/osgviewerQt/osgviewerQt.cpp
+++ b/examples/osgviewerQt/osgviewerQt.cpp
@@ -16,7 +16,7 @@
 class ViewerWidget : public QWidget, public osgViewer::CompositeViewer
 {
 public:
-    ViewerWidget(osgViewer::ViewerBase::ThreadingModel threadingModel=osgViewer::CompositeViewer::SingleThreaded) : QWidget()
+    ViewerWidget(QWidget* parent = 0, Qt::WindowFlags f = 0, osgViewer::ViewerBase::ThreadingModel threadingModel=osgViewer::CompositeViewer::SingleThreaded) : QWidget(parent, f)
     {
         setThreadingModel(threadingModel);
 
@@ -106,7 +106,7 @@ int main( int argc, char** argv )
     while (arguments.read("--CullThreadPerCameraDrawThreadPerContext")) threadingModel = osgViewer::ViewerBase::CullThreadPerCameraDrawThreadPerContext;
 
     QApplication app(argc, argv);
-    ViewerWidget* viewWidget = new ViewerWidget(threadingModel);
+    ViewerWidget* viewWidget = new ViewerWidget(0, Qt::Widget, threadingModel);
     viewWidget->setGeometry( 100, 100, 800, 600 );
     viewWidget->show();
     return app.exec();