diff --git a/abstracttoolbox.h b/abstracttoolbox.h
index 03939eb03..abd16e330 100644
--- a/abstracttoolbox.h
+++ b/abstracttoolbox.h
@@ -21,6 +21,7 @@
 #define PLASMA_ABSTRACTTOOLBOX_H
 
 #include <QGraphicsWidget>
+#include <QGraphicsItem>
 
 #include "containment.h"