diff --git a/sources/editor/graphicspart/parttext.cpp b/sources/editor/graphicspart/parttext.cpp
index e99086488..2f10570dd 100644
--- a/sources/editor/graphicspart/parttext.cpp
+++ b/sources/editor/graphicspart/parttext.cpp
@@ -102,17 +102,11 @@ const QDomElement PartText::toXml(QDomDocument &xml_document) const {
 /**
 	@return Les coordonnees du point situe en bas a gauche du texte.
 */
-QPointF PartText::margin() const {
+QPointF PartText::margin() const
+{
 	QFont used_font = font();
 	QFontMetrics qfm(used_font);
-	
-	// marge du texte
-#if QT_VERSION >= 0x040500
 	qreal document_margin = document() -> documentMargin();
-#else
-	// il semblerait qu'avant Qt 4.5, ceci vaille non pas 4.0 mais 2.0
-	qreal document_margin = 2.0;
-#endif
 	
 	QPointF margin(
 		// marge autour du texte
diff --git a/sources/qetdiagrameditor.cpp b/sources/qetdiagrameditor.cpp
index 148919c85..79c5ef0dd 100644
--- a/sources/qetdiagrameditor.cpp
+++ b/sources/qetdiagrameditor.cpp
@@ -69,10 +69,7 @@ QETDiagramEditor::QETDiagramEditor(const QStringList &files, QWidget *parent) :
 		//Set object name to be retrieved by the stylesheets
 	workspace.setBackground(QBrush(Qt::NoBrush));
 	workspace.setObjectName("mdiarea");
-	
-#if QT_VERSION >= 0x040800
 	workspace.setTabsClosable(true);
-#endif
 	
 		//Set the signal mapper
 	connect(&windowMapper, SIGNAL(mapped(QWidget *)), this, SLOT(activateWidget(QWidget *)));
diff --git a/sources/qetgraphicsitem/customelement.cpp b/sources/qetgraphicsitem/customelement.cpp
index d0ae63453..352753a8d 100644
--- a/sources/qetgraphicsitem/customelement.cpp
+++ b/sources/qetgraphicsitem/customelement.cpp
@@ -674,14 +674,8 @@ bool CustomElement::parseText(QDomElement &e, QPainter &qp) {
 	*/
 	QPointF qpainter_offset(0.0, -qfm.ascent());
 	
-	// ajuste le decalage selon la marge du document texte
-#if QT_VERSION >= 0x040500
+		//adjusts the offset by the margin of the text document
 	text_document.setDocumentMargin(0.0);
-#else
-	// il semblerait qu'avant Qt 4.5, le documentMargin vaille 2.0 (et pas 4.0)
-	qpainter_offset.rx() -= 2.0;
-	qpainter_offset.ry() -= 2.0;
-#endif
 	
 	qp.translate(qpainter_offset);
 	
diff --git a/sources/qetproject.cpp b/sources/qetproject.cpp
index 6b46eed81..b8e393f21 100644
--- a/sources/qetproject.cpp
+++ b/sources/qetproject.cpp
@@ -506,12 +506,9 @@ void QETProject::setDefaultXRefProperties(const QString type, const XRefProperti
 	emit XRefPropertiesChanged();
 }
 
-void QETProject::setDefaultXRefProperties(QHash<QString, XRefProperties> hash) {
-#if QT_VERSION >= 0x040800
+void QETProject::setDefaultXRefProperties(QHash<QString, XRefProperties> hash)
+{
 	m_default_xref_properties.swap(hash);
-#else
-	m_default_xref_properties = hash;
-#endif
 	emit XRefPropertiesChanged();
 }