diff --git a/src/particles/qquickitemparticle.cpp b/src/particles/qquickitemparticle.cpp
index 53aa9a9926873e5adbf3d249ae275b8a4ba63c04..0fe0b2ae0bcac100e2e9bb6ad07b4742dbe6cdac 100644
--- a/src/particles/qquickitemparticle.cpp
+++ b/src/particles/qquickitemparticle.cpp
@@ -101,7 +101,7 @@ QT_BEGIN_NAMESPACE
 */
 
 QQuickItemParticle::QQuickItemParticle(QQuickItem *parent) :
-    QQuickParticlePainter(parent), m_fade(true), m_delegate(0)
+    QQuickParticlePainter(parent), m_fade(true), m_lastT(0), m_activeCount(0), m_delegate(0)
 {
     setFlag(QQuickItem::ItemHasContents);
     clock = new Clock(this);