diff --git a/src/chartdataset.cpp b/src/chartdataset.cpp
index bd3bcb4..af0ae36 100644
--- a/src/chartdataset.cpp
+++ b/src/chartdataset.cpp
@@ -29,6 +29,7 @@ void ChartDataSet::addSeries(QChartSeries* series)
 {
     // TODO: we should check the series not already added
     m_chartSeries << series;
+    series->setParent(this); // take ownership
     m_domainIndex = 0;
     m_domains.resize(1);
 
diff --git a/src/piechart/qpieseries.cpp b/src/piechart/qpieseries.cpp
index 40217db..37e9c1e 100644
--- a/src/piechart/qpieseries.cpp
+++ b/src/piechart/qpieseries.cpp
@@ -59,8 +59,7 @@ QPieSeries::QPieSeries(QObject *parent) :
 
 QPieSeries::~QPieSeries()
 {
-    // slices destroyed by parent object
-    qDebug() << "~QPieSeries";
+
 }
 
 bool QPieSeries::setData(QList<qreal> data)
diff --git a/src/qchartview.cpp b/src/qchartview.cpp
index d1ba37b..a491fac 100644
--- a/src/qchartview.cpp
+++ b/src/qchartview.cpp
@@ -11,7 +11,7 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
 QChartView::QChartView(QWidget *parent) :
 QGraphicsView(parent),
-m_scene(new QGraphicsScene()),
+m_scene(new QGraphicsScene(this)),
 m_chart(new QChart()),
 m_rubberBand(0),
 m_verticalRubberBand(false),
diff --git a/src/qchartview.h b/src/qchartview.h
index 44fd94f..85296ae 100644
--- a/src/qchartview.h
+++ b/src/qchartview.h
@@ -24,7 +24,7 @@ public:
     //implement from QWidget
     void resizeEvent(QResizeEvent *event);
 
-    void addSeries(QChartSeries* series);
+    void addSeries(QChartSeries* series); // takes ownership
 
     // Convenience function
     QChartSeries* createSeries(QChartSeries::QChartSeriesType type);