diff --git a/editor/editorscene.h b/editor/editorscene.h
index 1104831ec..5a0c4ce0a 100644
--- a/editor/editorscene.h
+++ b/editor/editorscene.h
@@ -36,10 +36,10 @@ class EditorScene : public QGraphicsScene {
 	NamesList _names;
 	/// Liste des orientations de l'element
 	OrientationSet ori;
-	/// Pile des actions annulables
-	QUndoStack undo_stack;
 	/// Gestionnaire de QGraphicsItem
 	QGIManager qgi_manager;
+	/// Pile des actions annulables
+	QUndoStack undo_stack;
 	
 	/// Variables relatives a la gestion du dessin des parties sur la scene
 	Behavior behavior;
diff --git a/qgimanager.cpp b/qgimanager.cpp
index 12db6fa74..bff8bd337 100644
--- a/qgimanager.cpp
+++ b/qgimanager.cpp
@@ -42,7 +42,10 @@ void QGIManager::manage(QGraphicsItem *qgi) {
 void QGIManager::release(QGraphicsItem *qgi) {
 	if (!qgi_manager.contains(qgi)) return;
 	-- qgi_manager[qgi];
-	if (!qgi_manager[qgi] && !(scene -> items().contains(qgi))) delete qgi;
+	if (qgi_manager[qgi] <= 0 && !(scene -> items().contains(qgi))) {
+		delete qgi;
+		qgi_manager.remove(qgi);
+	}
 }
 
 /**