diff --git a/ExtendedWPFToolkitSolution/Src/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs b/ExtendedWPFToolkitSolution/Src/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs
index e53f1f88..96e9911a 100644
--- a/ExtendedWPFToolkitSolution/Src/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs
+++ b/ExtendedWPFToolkitSolution/Src/Xceed.Wpf.AvalonDock/Controls/LayoutAnchorableFloatingWindowControl.cs
@@ -57,6 +57,7 @@ namespace Xceed.Wpf.AvalonDock.Controls
     internal LayoutAnchorableFloatingWindowControl( LayoutAnchorableFloatingWindow model)
         : base( model, false )
     {
+        _model = model;
     }
 
     #endregion