diff --git a/ICSharpCode.AvalonEdit/Rendering/CurrentLineHighlightRenderer.cs b/ICSharpCode.AvalonEdit/Rendering/CurrentLineHighlightRenderer.cs
index 91def58..d553341 100644
--- a/ICSharpCode.AvalonEdit/Rendering/CurrentLineHighlightRenderer.cs
+++ b/ICSharpCode.AvalonEdit/Rendering/CurrentLineHighlightRenderer.cs
@@ -20,8 +20,6 @@ using System;
 using System.Windows;
 using System.Windows.Media;
 
-using ICSharpCode.AvalonEdit.Rendering;
-
 namespace ICSharpCode.AvalonEdit.Rendering
 {
 	sealed class CurrentLineHighlightRenderer : IBackgroundRenderer
diff --git a/ICSharpCode.AvalonEdit/Rendering/TextView.cs b/ICSharpCode.AvalonEdit/Rendering/TextView.cs
index 8c08cbd..0423b16 100644
--- a/ICSharpCode.AvalonEdit/Rendering/TextView.cs
+++ b/ICSharpCode.AvalonEdit/Rendering/TextView.cs
@@ -1234,7 +1234,13 @@ namespace ICSharpCode.AvalonEdit.Rendering
 			DisconnectFromTextView(renderer);
 			InvalidateLayer(renderer.Layer);
 		}
-		
+
+		protected override void OnRenderSizeChanged(SizeChangedInfo sizeInfo)
+		{
+			base.OnRenderSizeChanged(sizeInfo);
+			InvalidateLayer(KnownLayer.Selection);
+		}
+
 		/// <inheritdoc/>
 		protected override void OnRender(DrawingContext drawingContext)
 		{