diff --git a/Document-Layout-Analysis.md b/Document-Layout-Analysis.md
index aea4ee7..49dedfa 100644
--- a/Document-Layout-Analysis.md
+++ b/Document-Layout-Analysis.md
@@ -299,8 +299,8 @@ var blocks = recursiveXYCut.GetBlocks(words);
 var recursiveXYCut = new RecursiveXYCut(new RecursiveXYCut.RecursiveXYCutOptions()
 {
     MinimumWidth = page.Width / 3.0,
-    DominantFontWidthFunc = _ => page.Letters.Average(l => l.GlyphRectangle.Width),
-    DominantFontHeightFunc = _ => page.Letters.Average(l => l.GlyphRectangle.Height)
+    DominantFontWidthFunc = _ => page.Letters.Average(l => l.BoundingBox.Width),
+    DominantFontHeightFunc = _ => page.Letters.Average(l => l.BoundingBox.Height)
 });
 
 var blocks = recursiveXYCut.GetBlocks(words);
@@ -312,8 +312,8 @@ var blocks = recursiveXYCut.GetBlocks(words);
 var recursiveXYCut = new RecursiveXYCut(new RecursiveXYCut.RecursiveXYCutOptions()
 {
     MinimumWidth = page.Width / 3.0,
-    DominantFontWidthFunc = letters => letters.Select(l => l.GlyphRectangle.Width).Average(),
-    DominantFontHeightFunc = letters => letters.Select(l => l.GlyphRectangle.Height).Average()
+    DominantFontWidthFunc = letters => letters.Select(l => l.BoundingBox.Width).Average(),
+    DominantFontHeightFunc = letters => letters.Select(l => l.BoundingBox.Height).Average()
 });
 
 var blocks = recursiveXYCut.GetBlocks(words);