diff --git a/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml b/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml
index e8ed2c84..0f521ba5 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml
+++ b/source/Components/Xceed.Wpf.AvalonDock/Themes/generic.xaml
@@ -652,8 +652,8 @@
                                 <ContentPresenter Content="{Binding Model, RelativeSource={RelativeSource TemplatedParent}}" 
                                                   ContentTemplate="{Binding DocumentHeaderTemplate, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}"
                                                   ContentTemplateSelector="{Binding DocumentHeaderTemplateSelector, Mode=OneWay, RelativeSource={RelativeSource AncestorType={x:Type avalonDock:DockingManager}, Mode=FindAncestor}}" />
-                                <!-- Close button should be moved out to the container style -->
-                                <Button x:Name="DocumentCloseButton" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" Grid.Column="1" Margin="5,0,0,0" Visibility="Hidden" 
+                                <!-- Close button should be moved out to the container style --><!-- https://github.com/xceedsoftware/wpftoolkit/pull/1184/files -->
+                                <Button x:Name="DocumentCloseButton" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" Grid.Column="1" Margin="1,-5,-3,-6" Visibility="Hidden" 
                                         Command="{Binding Path=LayoutItem.CloseCommand, RelativeSource={RelativeSource TemplatedParent}}"
                                         ToolTip="{x:Static avalonDockProperties:Resources.Document_Close}">
                                     <Image Source="/Xceed.Wpf.AvalonDock;component/Themes/Generic/Images/PinClose.png"/>