diff --git a/sources/aboutqet.cpp b/sources/aboutqet.cpp
index b7d7df04b..e28a1c702 100644
--- a/sources/aboutqet.cpp
+++ b/sources/aboutqet.cpp
@@ -72,7 +72,7 @@ QWidget *AboutQET::title() const {
 	QLabel *icon = new QLabel();
 	icon -> setPixmap(QET::Icons::QETOxygenLogo.pixmap(48, 48));
 	// label "QElectroTech"
-	QLabel *title = new QLabel("<span style=\"font-weight:0;font-size:16pt;\">QElectroTech v" + QET::displayedVersion + "</span>");
+	QLabel *title = new QLabel("<span style=\"font-weight:0;font-size:16pt;\">QElectroTech V " + QET::displayedVersion + "</span>");
 	QString compilation_info = "<br />" + tr("Compilation : ");
 #ifdef __GNUC__
 	compilation_info += "  GCC " + QString(__VERSION__);
diff --git a/sources/qet.h b/sources/qet.h
index 179ed1735..3d8ca380c 100644
--- a/sources/qet.h
+++ b/sources/qet.h
@@ -25,9 +25,9 @@
 */
 namespace QET {
 	/// QElectroTech version (as string, used to mark projects and elements XML documents)
-	const QString version = "0.5";
+	const QString version = "0.5.1";
 	/// QElectroTech displayed version
-	const QString displayedVersion = "0.5";
+	const QString displayedVersion = "0.5.1-dev";
 	QString license();
 	
 	/// Oriented movements