diff --git a/Perspex/Themes/Default/CheckBoxStyle.cs b/Perspex/Themes/Default/CheckBoxStyle.cs
index 8785b0e71a..e8be7a5b4b 100644
--- a/Perspex/Themes/Default/CheckBoxStyle.cs
+++ b/Perspex/Themes/Default/CheckBoxStyle.cs
@@ -73,6 +73,7 @@ namespace Perspex.Themes.Default
                             Data = StreamGeometry.Parse("M0,0 L10,10 M10,0 L0,10"),
                             Stroke = Brushes.Black,
                             StrokeThickness = 2,
+                            HorizontalAlignment = HorizontalAlignment.Center,
                             VerticalAlignment = VerticalAlignment.Center,
                             [Grid.ColumnProperty] = 0,
                         },