diff --git a/sources/qetgraphicsitem/dynamicelementtextitem.cpp b/sources/qetgraphicsitem/dynamicelementtextitem.cpp
index c6d96706e..a454f301a 100644
--- a/sources/qetgraphicsitem/dynamicelementtextitem.cpp
+++ b/sources/qetgraphicsitem/dynamicelementtextitem.cpp
@@ -135,7 +135,7 @@ void DynamicElementTextItem::fromXml(const QDomElement &dom_elmt)
 	if(m_text_from == ElementInfo)
 	{
 		setNoEditable(true);
-		connect(m_parent_element, &Element::elementInfoChange, this, &DynamicElementTextItem::elementInfoChanged);
+		connect(m_parent_element.data(), &Element::elementInfoChange, this, &DynamicElementTextItem::elementInfoChanged);
 	}
 	else {
 		setNoEditable(false);
diff --git a/sources/ui/elementinfowidget.cpp b/sources/ui/elementinfowidget.cpp
index e261004c4..5b5743727 100644
--- a/sources/ui/elementinfowidget.cpp
+++ b/sources/ui/elementinfowidget.cpp
@@ -59,7 +59,7 @@ void ElementInfoWidget::setElement(Element *element)
 	if (m_element == element) return;
 
 	if (m_element)
-		disconnect(m_element, &Element::elementInfoChange, this, &ElementInfoWidget::elementInfoChange);
+		disconnect(m_element.data(), &Element::elementInfoChange, this, &ElementInfoWidget::elementInfoChange);
 
 	m_element = element;
 	updateUi();
@@ -80,7 +80,7 @@ void ElementInfoWidget::setElement(Element *element)
 		});
 	}
 
-	connect(m_element, &Element::elementInfoChange, this, &ElementInfoWidget::elementInfoChange);
+	connect(m_element.data(), &Element::elementInfoChange, this, &ElementInfoWidget::elementInfoChange);
 }
 
 /**
diff --git a/sources/ui/linksingleelementwidget.cpp b/sources/ui/linksingleelementwidget.cpp
index 967dcec2c..57637166f 100644
--- a/sources/ui/linksingleelementwidget.cpp
+++ b/sources/ui/linksingleelementwidget.cpp
@@ -104,7 +104,7 @@ void LinkSingleElementWidget::setElement(Element *element)
 	if (m_element)
 	{
 		disconnect(m_element->diagram()->project(), &QETProject::diagramRemoved, this, &LinkSingleElementWidget::diagramWasRemovedFromProject);
-		disconnect(m_element, &Element::linkedElementChanged, this, &LinkSingleElementWidget::updateUi);
+		disconnect(m_element.data(), &Element::linkedElementChanged, this, &LinkSingleElementWidget::updateUi);
 		m_element->setHighlighted(false);
 	}
 	
@@ -127,7 +127,7 @@ void LinkSingleElementWidget::setElement(Element *element)
 		m_filter = Element::Simple;
 
 	connect(m_element->diagram()->project(), &QETProject::diagramRemoved, this, &LinkSingleElementWidget::diagramWasRemovedFromProject);
-	connect(m_element, &Element::linkedElementChanged, this, &LinkSingleElementWidget::updateUi, Qt::QueuedConnection);
+	connect(m_element.data(), &Element::linkedElementChanged, this, &LinkSingleElementWidget::updateUi, Qt::QueuedConnection);
 
 	updateUi();
 }
diff --git a/sources/ui/masterpropertieswidget.cpp b/sources/ui/masterpropertieswidget.cpp
index 3468ddbca..3746e8e70 100644
--- a/sources/ui/masterpropertieswidget.cpp
+++ b/sources/ui/masterpropertieswidget.cpp
@@ -135,10 +135,10 @@ void MasterPropertiesWidget::setElement(Element *element)
 
 		//Keep up to date this widget when the linked elements of m_element change
 	if (m_element)
-		disconnect(m_element, &Element::linkedElementChanged, this, &MasterPropertiesWidget::updateUi);
+		disconnect(m_element.data(), &Element::linkedElementChanged, this, &MasterPropertiesWidget::updateUi);
 	
 	m_element = element;
-	connect(m_element, &Element::linkedElementChanged, this, &MasterPropertiesWidget::updateUi);
+	connect(m_element.data(), &Element::linkedElementChanged, this, &MasterPropertiesWidget::updateUi);
 
 	updateUi();
 }