diff --git a/sources/editor/editorcommands.cpp b/sources/editor/editorcommands.cpp
index a3e8a2f40..1f081858f 100644
--- a/sources/editor/editorcommands.cpp
+++ b/sources/editor/editorcommands.cpp
@@ -236,7 +236,9 @@ void AddPartCommand::undo() {
 void AddPartCommand::redo() {
 	// le premier appel a redo, lors de la construction de l'objet, ne doit pas se faire
 	if (first_redo) {
-		part -> setZValue(editor_scene -> items().count());
+		QList<QGraphicsItem *> existing_items = editor_scene -> zItems();
+		qreal z = existing_items.count() ? existing_items.last() -> zValue() + 1 : 1;
+		part -> setZValue(z);
 		editor_scene -> clearSelection();
 		part -> setSelected(true);
 		first_redo = false;
diff --git a/sources/editor/elementscene.cpp b/sources/editor/elementscene.cpp
index 32e8ef47a..8784f31c4 100644
--- a/sources/editor/elementscene.cpp
+++ b/sources/editor/elementscene.cpp
@@ -1211,7 +1211,7 @@ ElementContent ElementScene::loadContent(const QDomDocument &xml_document, QStri
 				else if (qde.tagName() == "arc")      cep = new PartArc      (element_editor, 0, 0);
 				else continue;
 				if (QGraphicsItem *qgi = dynamic_cast<QGraphicsItem *>(cep)) {
-					qgi -> setZValue(z++);
+					if (!qgi -> zValue()) qgi -> setZValue(z++);
 					loaded_parts << qgi;
 				}
 				cep -> fromXml(qde);