diff --git a/sources/qgimanager.cpp b/sources/qgimanager.cpp
index 34c7ddecc..77e2d9dba 100644
--- a/sources/qgimanager.cpp
+++ b/sources/qgimanager.cpp
@@ -17,6 +17,9 @@
 */
 #include "qgimanager.h"
 
+#include <QGraphicsScene>
+#include <QGraphicsItem>
+
 /**
 	Constructeur
 	@param sc QGraphicsScene a utiliser pour gerer au mieux les QGraphicsItem
diff --git a/sources/qgimanager.h b/sources/qgimanager.h
index 15f24d362..d8a8e0e81 100644
--- a/sources/qgimanager.h
+++ b/sources/qgimanager.h
@@ -17,9 +17,12 @@
 */
 #ifndef QGI_MANAGER_H
 #define QGI_MANAGER_H
+
 #include <QtCore>
-#include <QGraphicsScene>
-#include <QGraphicsItem>
+
+class QGraphicsScene;
+class QGraphicsItem;
+
 /**
 	This class provides a QGraphicsItem manager, which can delete QGraphicsItem
 	as soon as there is no reference to them anymore.