diff --git a/sources/qetgraphicsitem/element.h b/sources/qetgraphicsitem/element.h
index a5f2c9689..441bbc3d6 100644
--- a/sources/qetgraphicsitem/element.h
+++ b/sources/qetgraphicsitem/element.h
@@ -55,7 +55,7 @@ class Element : public QetGraphicsItem // TODO: derive from propertiesInterface!
 				   Slave = 16,
 				   Terminale = 32};
 
-		Element(const ElementsLocation &location, QGraphicsItem * = nullptr, int *state = nullptr, Element::kind link_type = Element::Simple);
+        Element(const ElementsLocation &location, QGraphicsItem * parent= nullptr, int *state = nullptr, Element::kind link_type = Element::Simple);
 		~Element() override;
 	private:
 		Element(const Element &);
diff --git a/sources/qetgraphicsitem/slaveelement.cpp b/sources/qetgraphicsitem/slaveelement.cpp
index 3c61830d3..d69b778bd 100644
--- a/sources/qetgraphicsitem/slaveelement.cpp
+++ b/sources/qetgraphicsitem/slaveelement.cpp
@@ -29,8 +29,8 @@
  * @param s parent diagram
  * @param state int used to know if the creation of element have error
  */
-SlaveElement::SlaveElement(const ElementsLocation &location, QGraphicsItem *qgi, int *state) :
-	Element(location, qgi, state, Element::Slave)
+SlaveElement::SlaveElement(const ElementsLocation &location, QGraphicsItem *parent, int *state) :
+    Element(location, parent, state, Element::Slave)
 {
 
 }
diff --git a/sources/qetgraphicsitem/slaveelement.h b/sources/qetgraphicsitem/slaveelement.h
index fe5067da9..3117451da 100644
--- a/sources/qetgraphicsitem/slaveelement.h
+++ b/sources/qetgraphicsitem/slaveelement.h
@@ -25,7 +25,7 @@ class SlaveElement : public Element
 {
 	Q_OBJECT
 	public:
-		explicit SlaveElement (const ElementsLocation &, QGraphicsItem * = nullptr, int * = nullptr);
+        explicit SlaveElement (const ElementsLocation &, QGraphicsItem * parent= nullptr, int * = nullptr);
 		~SlaveElement() override;
 		void linkToElement(Element *elmt) override;
 		void unlinkAllElements() override;