diff --git a/source/Components/AvalonDock/Controls/LayoutAutoHideWindowControl.cs b/source/Components/AvalonDock/Controls/LayoutAutoHideWindowControl.cs
index 13eeac3b..e5c876a2 100644
--- a/source/Components/AvalonDock/Controls/LayoutAutoHideWindowControl.cs
+++ b/source/Components/AvalonDock/Controls/LayoutAutoHideWindowControl.cs
@@ -1,4 +1,4 @@
-/************************************************************************
+/************************************************************************
    AvalonDock
 
    Copyright (C) 2007-2013 Xceed Software Inc.
@@ -318,6 +318,7 @@ private void ShowResizerOverlayWindow(LayoutGridResizerControl splitter)
 			panelHostResizer.Children.Add(_resizerGhost);
 			_resizerWindowHost = new Window
 			{
+				Style = new Style(typeof(Window), null),
 				ResizeMode = ResizeMode.NoResize,
 				WindowStyle = WindowStyle.None,
 				ShowInTaskbar = false,
diff --git a/source/Components/AvalonDock/Controls/LayoutGridControl.cs b/source/Components/AvalonDock/Controls/LayoutGridControl.cs
index 4ba385d2..09399daa 100644
--- a/source/Components/AvalonDock/Controls/LayoutGridControl.cs
+++ b/source/Components/AvalonDock/Controls/LayoutGridControl.cs
@@ -609,6 +609,7 @@ private void ShowResizerOverlayWindow(LayoutGridResizerControl splitter)
 
 			_resizerWindowHost = new Window
 			{
+				Style = new Style(typeof(Window), null),
 				SizeToContent = System.Windows.SizeToContent.Manual,
 				ResizeMode = ResizeMode.NoResize,
 				WindowStyle = System.Windows.WindowStyle.None,