diff --git a/src/digest-tree-scene.cpp b/src/digest-tree-scene.cpp
index 17bc67a..55d9a36 100644
--- a/src/digest-tree-scene.cpp
+++ b/src/digest-tree-scene.cpp
@@ -12,10 +12,10 @@
 #include "digest-tree-scene.hpp"
 
 #include <QtGui>
+#include <QGraphicsTextItem>
 
 #ifndef Q_MOC_RUN
 #include <vector>
-#include <iostream>
 #include <assert.h>
 #include <boost/lexical_cast.hpp>
 #include <memory>
@@ -28,7 +28,7 @@
 
 //DisplayUserPtr DisplayUserNullPtr;
 
-DigestTreeScene::DigestTreeScene(QWidget *parent)
+DigestTreeScene::DigestTreeScene(QObject *parent)
   : QGraphicsScene(parent)
 {
   m_previouslyUpdatedUser = DisplayUserNullPtr;