diff --git a/src/widgets/pieview.cpp b/src/widgets/pieview.cpp
index c8867426..74a711eb 100644
--- a/src/widgets/pieview.cpp
+++ b/src/widgets/pieview.cpp
@@ -65,6 +65,14 @@ PieView::PieView(QWidget *parent)
     rubberBand = 0;
 }
 
+void PieView::reset()
+{
+    validItems = 0;
+    totalValue = 0.0;
+
+    QAbstractItemView::reset();
+}
+
 void PieView::dataChanged(const QModelIndex &topLeft,
                           const QModelIndex &bottomRight,
                           const QVector<int> &)
diff --git a/src/widgets/pieview.h b/src/widgets/pieview.h
index 435d06d5..b99434cb 100644
--- a/src/widgets/pieview.h
+++ b/src/widgets/pieview.h
@@ -55,11 +55,14 @@ public:
     void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible);
     QModelIndex indexAt(const QPoint &point) const;
 
+public slots:
+    void reset() override;
+
 protected slots:
     void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight,
-                     const QVector<int> &roles = QVector<int>());
-    void rowsInserted(const QModelIndex &parent, int start, int end);
-    void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
+                     const QVector<int> &roles = QVector<int>()) override;
+    void rowsInserted(const QModelIndex &parent, int start, int end) override;
+    void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) override;
 
 protected:
     bool edit(const QModelIndex &index, EditTrigger trigger, QEvent *event);