diff --git a/sources/qetgraphicsitem/qetshapeitem.cpp b/sources/qetgraphicsitem/qetshapeitem.cpp
index 6769e3712..1a1c148cc 100644
--- a/sources/qetgraphicsitem/qetshapeitem.cpp
+++ b/sources/qetgraphicsitem/qetshapeitem.cpp
@@ -459,7 +459,7 @@ bool QetShapeItem::fromXml(const QDomElement &e)
 
 	is_movable_ = (e.attribute("is_movable").toInt());
 	m_pen.setStyle(Qt::PenStyle(e.attribute("style","0").toInt()));
-	m_pen.setWidthF(e.attribute("shape_size", QString::number(shape_size)).toDouble());
+	m_pen.setWidthF(e.attribute("size", QString::number(shape_size)).toDouble());
 
 	QString type = e.attribute("type");
 		//Compatibility for version older than N°4075, shape type was stored with an int
@@ -508,7 +508,7 @@ QDomElement QetShapeItem::toXml(QDomDocument &document) const
 	QMetaEnum me = metaObject()->enumerator(metaObject()->indexOfEnumerator("ShapeType"));
 	result.setAttribute("type", me.valueToKey(m_shapeType));
 	result.setAttribute("style", QString::number(m_pen.style()));
-	result.setAttribute("shape_size", QString::number(m_pen.widthF()));
+	result.setAttribute("size", QString::number(m_pen.widthF()));
 	result.setAttribute("is_movable", bool(is_movable_));
 	if (m_shapeType != Polygon)
 	{