diff --git a/src/Files.App/MainWindow.xaml.cs b/src/Files.App/MainWindow.xaml.cs
index 1965565022a2..e80e55247649 100644
--- a/src/Files.App/MainWindow.xaml.cs
+++ b/src/Files.App/MainWindow.xaml.cs
@@ -29,6 +29,7 @@ public MainWindow()
 			MinWidth = 416;
 			ExtendsContentIntoTitleBar = true;
 			Title = "Files";
+			PersistenceId = "FilesMainWindow";
 			AppWindow.TitleBar.ButtonBackgroundColor = Colors.Transparent;
 			AppWindow.TitleBar.ButtonInactiveBackgroundColor = Colors.Transparent;
 			AppWindow.TitleBar.ButtonPressedBackgroundColor = Colors.Transparent;