diff --git a/_quarto-book.yml b/_quarto-book.yml
index 13e8cff..def7ada 100644
--- a/_quarto-book.yml
+++ b/_quarto-book.yml
@@ -44,7 +44,7 @@ book:
     - common-mistakes.qmd
     - notation.qmd
     - intro-to-R.qmd
-    - Contributing.md
+    - CONTRIBUTING.md
   back-to-top-navigation: true
   page-navigation: true