diff --git a/src/piechart/piechartitem_p.h b/src/piechart/piechartitem_p.h
index b020e46..68f0e37 100644
--- a/src/piechart/piechartitem_p.h
+++ b/src/piechart/piechartitem_p.h
@@ -33,6 +33,7 @@
 #include "qpieseries.h"
 #include "chartitem_p.h"
 #include "piesliceitem_p.h"
+#include <QPointer>
 
 class QGraphicsItem;
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
@@ -71,7 +72,7 @@ private:
 
 private:
     QHash<QPieSlice *, PieSliceItem *> m_sliceItems;
-    QPieSeries *m_series;
+    QPointer<QPieSeries> m_series;
     QRectF m_rect;
     QPointF m_pieCenter;
     qreal m_pieRadius;
diff --git a/src/piechart/qpieseries.cpp b/src/piechart/qpieseries.cpp
index 13172a1..3a806cf 100644
--- a/src/piechart/qpieseries.cpp
+++ b/src/piechart/qpieseries.cpp
@@ -362,6 +362,7 @@ QPieSeries::QPieSeries(QObject *parent)
 QPieSeries::~QPieSeries()
 {
     // NOTE: d_prt destroyed by QObject
+    clear();
 }
 
 /*!