diff --git a/src/animations/pieanimation.cpp b/src/animations/pieanimation.cpp
index 39a1584..a4b017c 100644
--- a/src/animations/pieanimation.cpp
+++ b/src/animations/pieanimation.cpp
@@ -37,8 +37,12 @@ PieAnimation::~PieAnimation()
 ChartAnimation *PieAnimation::updateValue(PieSliceItem *sliceItem, const PieSliceData &sliceData)
 {
     PieSliceAnimation *animation = m_animations.value(sliceItem);
-    Q_ASSERT(animation);
-    animation->stop();
+    if (!animation) {
+        animation = new PieSliceAnimation(sliceItem);
+        m_animations.insert(sliceItem, animation);
+    } else {
+        animation->stop();
+    }
 
     animation->updateValue(sliceData);
     animation->setDuration(ChartAnimationDuration);
diff --git a/src/animations/piesliceanimation.cpp b/src/animations/piesliceanimation.cpp
index 6271322..328c611 100644
--- a/src/animations/piesliceanimation.cpp
+++ b/src/animations/piesliceanimation.cpp
@@ -59,8 +59,10 @@ QBrush linearPos(QBrush start, QBrush end, qreal pos)
 
 PieSliceAnimation::PieSliceAnimation(PieSliceItem *sliceItem)
     : ChartAnimation(sliceItem),
-      m_sliceItem(sliceItem)
+      m_sliceItem(sliceItem),
+      m_currentValue(m_sliceItem->m_data)
 {
+
 }
 
 PieSliceAnimation::~PieSliceAnimation()
diff --git a/src/piechart/piesliceitem_p.h b/src/piechart/piesliceitem_p.h
index adc7617..32111ad 100644
--- a/src/piechart/piesliceitem_p.h
+++ b/src/piechart/piesliceitem_p.h
@@ -81,6 +81,8 @@ private:
     QPainterPath m_labelArmPath;
     QRectF m_labelTextRect;
     bool m_hovered;
+
+    friend class PieSliceAnimation;
 };
 
 QTCOMMERCIALCHART_END_NAMESPACE