diff --git a/sources/ui/linksingleelementwidget.cpp b/sources/ui/linksingleelementwidget.cpp
index 57637166f..670e0f9fe 100644
--- a/sources/ui/linksingleelementwidget.cpp
+++ b/sources/ui/linksingleelementwidget.cpp
@@ -83,10 +83,12 @@ LinkSingleElementWidget::~LinkSingleElementWidget()
 	if(m_showed_element)
 		m_showed_element->setHighlighted(false);
 	
-	m_element->setHighlighted(false);
-	
-	if (!m_element->isFree())
-		m_element->linkedElements().first()->setHighlighted(false);
+	if(m_element)
+	{
+		m_element->setHighlighted(false);		
+		if (!m_element->isFree())
+			m_element->linkedElements().first()->setHighlighted(false);
+	}
 	delete ui;
 }
 
diff --git a/sources/ui/potentialselectordialog.cpp b/sources/ui/potentialselectordialog.cpp
index 5477b0b3f..14e9e231a 100644
--- a/sources/ui/potentialselectordialog.cpp
+++ b/sources/ui/potentialselectordialog.cpp
@@ -215,8 +215,27 @@ PotentialSelectorDialog::~PotentialSelectorDialog()
  */
 void PotentialSelectorDialog::buildWidget()
 {
-	QRadioButton *rb1 = new QRadioButton(tr("Le potentiel avec numero de fil %1 est présent %2 fois").arg(m_potential_selector->m_properties_list_1.first().text).arg(m_potential_selector->m_conductor_number_1), this);
-	QRadioButton *rb2 = new QRadioButton(tr("Le potentiel avec numero de fil %1 est présent %2 fois").arg(m_potential_selector->m_properties_list_2.first().text).arg(m_potential_selector->m_conductor_number_2), this);
+	QString text1(tr("%n conducteurs composent potentiel suivant :", "", m_potential_selector->m_conductor_number_1));
+	ConductorProperties cp1 = m_potential_selector->m_properties_list_1.first();
+
+	if(!cp1.text.isEmpty())
+		text1.append(tr("\nNumero : %1").arg(cp1.text));
+	if(!cp1.m_function.isEmpty())
+		text1.append(tr("\nFonction : %1").arg(cp1.m_function));
+	if(!cp1.m_tension_protocol.isEmpty())
+		text1.append(tr("\nTension/protocole : %1").arg(cp1.m_tension_protocol));
+			
+	QString text2(tr("%n conducteurs composent le potentiel suivant :", "", m_potential_selector->m_conductor_number_2));
+	ConductorProperties cp2 = m_potential_selector->m_properties_list_2.first();
+	if(!cp2.text.isEmpty())
+		text2.append(tr("\nNumero : %1").arg(cp2.text));
+	if(!cp2.m_function.isEmpty())
+		text2.append(tr("\nFonction : %1").arg(cp2.m_function));
+	if(!cp2.m_tension_protocol.isEmpty())
+		text2.append(tr("\nTension/protocole : %1").arg(cp2.m_tension_protocol));
+			
+	QRadioButton *rb1 = new QRadioButton(text1, this);
+	QRadioButton *rb2 = new QRadioButton(text2, this);
 
 	connect(rb1, &QRadioButton::toggled, [this](bool t)
 	{
@@ -252,7 +271,6 @@ void PotentialSelectorDialog::buildWidget()
 		rb2->setChecked(true);
 	}
 }
-#include <QDebug>
 
 /**
  * @brief PotentialSelectorDialog::on_buttonBox_accepted
diff --git a/sources/undocommand/linkelementcommand.cpp b/sources/undocommand/linkelementcommand.cpp
index 1e472c2fc..8b711d0bb 100644
--- a/sources/undocommand/linkelementcommand.cpp
+++ b/sources/undocommand/linkelementcommand.cpp
@@ -123,29 +123,6 @@ bool LinkElementCommand::isLinkable(Element *element_a, Element *element_b, bool
 	}
 }
 
-/**
- * @brief LinkElementCommand::addLink
- * Add elements from the list to the linked element of edited element
- * This method do several check to know if element can be linked or not.
- * @param element_list
- */
-void LinkElementCommand::addLink(QList<Element *> element_list)
-{
-	setUpNewLink(element_list, false);
-}
-
-/**
- * @brief LinkElementCommand::addLink
- * This is an overloaded function
- * @param element_
- */
-void LinkElementCommand::addLink(Element *element_)
-{
-	QList<Element *> list;
-	list << element_;
-	addLink(list);
-}
-
 /**
  * @brief LinkElementCommand::setLink
  * Replace all linked elements of edited element by elements stored in @element_list
@@ -209,6 +186,9 @@ void LinkElementCommand::redo()
 	if(m_element->diagram()) m_element->diagram()->showMe();
 	makeLink(m_linked_after);
 
+		//If the action is to link two reports together, we check if the conductors
+		//of the new potential have the same text, function, and protocol.
+		//if not, a dialog ask what do to.
 	if (m_first_redo && (m_element->linkType() & Element::AllReport) \
 		&& m_element->conductors().size() \
 		&& m_linked_after.size() && m_linked_after.first()->conductors().size())
@@ -217,11 +197,18 @@ void LinkElementCommand::redo()
 		QSet <Conductor *> c_list = m_element->conductors().first()->relatedPotentialConductors();
 		c_list << m_element->conductors().first();
 			//fill list of text
-		QStringList strl;
-		foreach (const Conductor *c, c_list) strl<<(c->properties().text);
+		QStringList str_txt;
+		QStringList str_funct;
+		QStringList str_tens;
+		for (const Conductor *c : c_list)
+		{
+			str_txt   << c->properties().text;
+			str_funct << c->properties().m_function;
+			str_tens  << c->properties().m_tension_protocol;
+		}
 
 			//check text list, isn't same in potential, ask user what to do
-		if (!QET::eachStrIsEqual(strl))
+		if (!QET::eachStrIsEqual(str_txt) || !QET::eachStrIsEqual(str_funct) || !QET::eachStrIsEqual(str_tens))
 		{
 			PotentialSelectorDialog psd(m_element, this);
 			psd.exec();
diff --git a/sources/undocommand/linkelementcommand.h b/sources/undocommand/linkelementcommand.h
index 6a5524c8f..0c5f8d0fb 100644
--- a/sources/undocommand/linkelementcommand.h
+++ b/sources/undocommand/linkelementcommand.h
@@ -38,8 +38,6 @@ class LinkElementCommand : public QUndoCommand
 
 		static bool isLinkable (Element *element_a, Element *element_b, bool already_linked = false);
 
-		void addLink (QList<Element *> element_list);
-		void addLink (Element *element_);
 		void setLink (QList<Element *> element_list);
 		void setLink (Element *element_);
 		void unlink  (QList<Element *> element_list);