-<Window x:Class="Pithos.Client.WPF.PreferencesView"
+<Window x:Class="Pithos.Client.WPF.Preferences.PreferencesView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:cal="http://www.caliburnproject.org"