--- a/src/request.cpp

+++ b/src/request.cpp

@@ -305,7 +305,10 @@ QString Request::id() const

 void Request::setWidget(QWidget *widget)

 {

     Q_D(Request);

-    if (d->setWindow(widget->windowHandle())) {

+    if (widget) {

+	QWindow *whandle = widget->windowHandle();

+	if (whandle)

+	    d->setWindow(whandle);

         widget->show();

     }

 }