diff --git a/GraphicsView/include/CGAL/Qt/mouseGrabber_impl.h b/GraphicsView/include/CGAL/Qt/mouseGrabber_impl.h
index 656580f3e9c..e573b9614c6 100644
--- a/GraphicsView/include/CGAL/Qt/mouseGrabber_impl.h
+++ b/GraphicsView/include/CGAL/Qt/mouseGrabber_impl.h
@@ -39,7 +39,12 @@ using namespace qglviewer;
 CGAL_INLINE_FUNCTION
  QList<MouseGrabber *> &MouseGrabber::MouseGrabberPool() {
   static QList<MouseGrabber*> MouseGrabberPool_;
-  return MouseGrabberPool_;
+  void* p = qApp->property("qglviewer mouse grabber pool").value<void*>();
+  if(p == 0) {
+    p = (void*)(&MouseGrabberPool_);
+    qApp->setProperty("qglviewer mouse grabber pool", QVariant::fromValue(p));
+  }
+  return *static_cast<QList<MouseGrabber *> * >(p);
 }
 
 /*! Default constructor.
diff --git a/GraphicsView/include/CGAL/Qt/qglviewer_impl.h b/GraphicsView/include/CGAL/Qt/qglviewer_impl.h
index 38fadcd500b..656343d5deb 100644
--- a/GraphicsView/include/CGAL/Qt/qglviewer_impl.h
+++ b/GraphicsView/include/CGAL/Qt/qglviewer_impl.h
@@ -66,7 +66,12 @@ using namespace qglviewer;
 CGAL_INLINE_FUNCTION
 QList<QGLViewer *> &QGLViewer::QGLViewerPool() {
   static QList<QGLViewer *> QGLViewerPool_;
-  return QGLViewerPool_;
+  void* p = qApp->property("qglviewer pool").value<void*>();
+  if(p == 0) {
+    p = (void*)(&QGLViewerPool_);
+    qApp->setProperty("qglviewer pool", QVariant::fromValue(p));
+  }
+  return *static_cast<QList<QGLViewer *> * >(p);
 }
 
 /*! \mainpage