diff --git a/Perspex.Themes.Default/TabControlStyle.cs b/Perspex.Themes.Default/TabControlStyle.cs
index 4e1ce72efa..68be2c1981 100644
--- a/Perspex.Themes.Default/TabControlStyle.cs
+++ b/Perspex.Themes.Default/TabControlStyle.cs
@@ -57,7 +57,7 @@ namespace Perspex.Themes.Default
                             new DataTemplate<TabItem>(x => control.MaterializeDataTemplate(x.Content)),
                         },
                         [~Deck.ItemsProperty] = control[~TabControl.ItemsProperty],
-                        [~Deck.SelectedItemProperty] = control[~TabControl.SelectedItemProperty],
+                        [!Deck.SelectedItemProperty] = control[!TabControl.SelectedItemProperty],
                         [~Deck.TransitionProperty] = control[~TabControl.TransitionProperty],
                         [Grid.RowProperty] = 1,
                     }