diff --git a/examples/osgsimpleviewerQT3/osgsimpleviewerQT3.cpp b/examples/osgsimpleviewerQT3/osgsimpleviewerQT3.cpp
index 298668c99..fea4ccf6f 100644
--- a/examples/osgsimpleviewerQT3/osgsimpleviewerQT3.cpp
+++ b/examples/osgsimpleviewerQT3/osgsimpleviewerQT3.cpp
@@ -92,8 +92,10 @@ void GraphicsWindowQT::mouseMoveEvent( QMouseEvent* event )
 class SimpleViewerQT : public osgViewer::SimpleViewer, public GraphicsWindowQT
 {
     public:
-        SimpleViewerQT() {}
 
+        SimpleViewerQT(QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, WFlags f = 0):
+            GraphicsWindowQT( parent, name, shareWidget, f )
+            {}
 
         virtual void initializeGL()
         {
diff --git a/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp b/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp
index db1769b4b..95eb96427 100644
--- a/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp
+++ b/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp
@@ -92,8 +92,9 @@ void GraphicsWindowQT::mouseMoveEvent( QMouseEvent* event )
 class SimpleViewerQT : public osgViewer::SimpleViewer, public GraphicsWindowQT
 {
     public:
-        SimpleViewerQT() {}
 
+        SimpleViewerQT( QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, Qt::WFlags f = 0 ):
+            GraphicsWindowQT(parent, name, shareWidget, f) {}
 
         virtual void initializeGL()
         {