Audio element makes application crash on exit

import QtQuick 2.0
import QtMultimedia 5.0

Rectangle {
    Audio {
        id: playRing
        source: "cell_ring.caf"
        autoPlay: false
        autoLoad: false
        onError: {
            console.log(errorString);
        }
    }    width: 360
    height: 360
    Text {
        text: qsTr("Hello World")
        anchors.centerIn: parent
    }
    MouseArea {
        anchors.fill: parent
        onClicked: {
            console.log("Player playbackState "+playRing.playbackState);

            if (playRing.playbackState == Audio.PlayingState) {
                console.log("Stopping Player");
                playRing.stop();
            } else {
                playRing.play();
            }
        }
    }
}