From 2eb60f9f9d4d128d8c372fce09d8bd6001bf30ce Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Mon, 23 Sep 2019 23:49:37 +0100
Subject: [PATCH] revert mistake

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

diff --git a/src/Avalonia.Controls/Button.cs b/src/Avalonia.Controls/Button.cs
index c3c5bc146b..b09d3bddff 100644
--- a/src/Avalonia.Controls/Button.cs
+++ b/src/Avalonia.Controls/Button.cs
@@ -73,7 +73,7 @@ namespace Avalonia.Controls
         public static readonly StyledProperty<bool> IsPressedProperty =
             AvaloniaProperty.Register<Button, bool>(nameof(IsPressed));
 
-        private ICommand? _command;
+        private ICommand _command;
         private bool _commandCanExecute = true;
 
         /// <summary>