diff --git a/tests/Avalonia.Markup.Xaml.UnitTests/Xaml/BasicTests.cs b/tests/Avalonia.Markup.Xaml.UnitTests/Xaml/BasicTests.cs
index 4213a31c39..0fcb9432ab 100644
--- a/tests/Avalonia.Markup.Xaml.UnitTests/Xaml/BasicTests.cs
+++ b/tests/Avalonia.Markup.Xaml.UnitTests/Xaml/BasicTests.cs
@@ -530,7 +530,7 @@ namespace Avalonia.Markup.Xaml.UnitTests.Xaml
             style.TryGetResource("Brush", out var brush);
 
             Assert.NotNull(brush);
-
+            Assert.IsType<SolidColorBrush>(brush);
             Assert.Equal(Colors.White, ((ISolidColorBrush)brush).Color);
 
             style.TryGetResource("Double", out var d);