diff --git a/ModAssistant/MainWindow.xaml.cs b/ModAssistant/MainWindow.xaml.cs
index 8c1ee59..d81b009 100644
--- a/ModAssistant/MainWindow.xaml.cs
+++ b/ModAssistant/MainWindow.xaml.cs
@@ -49,6 +49,9 @@ namespace ModAssistant
 
             VersionText.Text = App.Version;
 
+            if (String.IsNullOrEmpty(App.BeatSaberInstallDirectory))
+                App.BeatSaberInstallDirectory = Utils.GetInstallDir();
+
             if (Utils.isVoid())
             {
                 Main.Content = Invalid.Instance;