diff --git a/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs b/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs
index 18da0d91..a10b7ab4 100644
--- a/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs
+++ b/CSharp/Environments/WindowsForms/Engines/UniversalEditor.UserInterface.WindowsForms.DesktopApplication/MainWindow.cs
@@ -641,7 +641,7 @@ namespace UniversalEditor.UserInterface.WindowsForms
 			else
 			{
 				DockingWindow wnd = dcc.Windows.Add(System.IO.Path.GetFileName(FileName), page);
-				dcc.Areas[DockPosition.Center].Areas[DockPosition.Center].Windows.Add(wnd);
+				dcc.Areas[DockPosition.Center].Windows.Add(wnd);
 			}
 
 			page.OpenFile(FileName);