From cb57a4313b0e294723cbad68a54e6e72058ab841 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Thu, 14 May 2020 15:17:25 -0300
Subject: [PATCH] make owner property readonly.

---
 src/Avalonia.Controls/WindowBase.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/WindowBase.cs b/src/Avalonia.Controls/WindowBase.cs
index bb63d1b353..afc01db506 100644
--- a/src/Avalonia.Controls/WindowBase.cs
+++ b/src/Avalonia.Controls/WindowBase.cs
@@ -109,7 +109,7 @@ namespace Avalonia.Controls
         public WindowBase Owner
         {
             get { return _owner; }
-            set { SetAndRaise(OwnerProperty, ref _owner, value); }
+            protected set { SetAndRaise(OwnerProperty, ref _owner, value); }
         }
 
         /// <summary>