diff --git a/private/kineticscroll.cpp b/private/kineticscroll.cpp
index d4652dceb..33b97c3b8 100644
--- a/private/kineticscroll.cpp
+++ b/private/kineticscroll.cpp
@@ -22,6 +22,7 @@
 #include <QtCore/qglobal.h>
 #include <QtCore/qmetatype.h>
 #include <QGraphicsSceneMouseEvent>
+#include <QGraphicsSceneWheelEvent>
 #include <QTime>
 #include <QDebug>
 #include <QGraphicsWidget>
diff --git a/private/kineticscroll_p.h b/private/kineticscroll_p.h
index 32497b142..cdc7c69f7 100644
--- a/private/kineticscroll_p.h
+++ b/private/kineticscroll_p.h
@@ -24,6 +24,7 @@
 
 class QGraphicsSceneMouseEvent;
 class QGraphicsWidget;
+class QGraphicsSceneWheelEvent;
 #include <QObject>
 #include <QPointF>