diff --git a/ILSpy/MainWindow.xaml b/ILSpy/MainWindow.xaml
index 8a4fc3783..7dbc791ef 100644
--- a/ILSpy/MainWindow.xaml
+++ b/ILSpy/MainWindow.xaml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Window
 	x:Class="ICSharpCode.ILSpy.MainWindow"
-	x:ClassModifier="internal"
+	x:ClassModifier="public"
 	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:tv="clr-namespace:ICSharpCode.TreeView;assembly=ICSharpCode.TreeView"
 	xmlns:local="clr-namespace:ICSharpCode.ILSpy" xmlns:textView="clr-namespace:ICSharpCode.ILSpy.TextView"
 	xmlns:controls="clr-namespace:ICSharpCode.ILSpy.Controls"