diff --git a/src/meshlab/mainwindow.h b/src/meshlab/mainwindow.h
index 10d4af4b4..61ba8340f 100644
--- a/src/meshlab/mainwindow.h
+++ b/src/meshlab/mainwindow.h
@@ -212,7 +212,7 @@ public:
   MainWindow();
    static bool QCallBack(const int pos, const char * str);
 	 const QString appName() const {return tr("MeshLab v")+appVer(); }
-   const QString appVer() const {return tr("1.2.2"); }
+   const QString appVer() const {return tr("1.2.3b"); }
 
 public slots: