diff --git a/images/Cornerstone-logo.png b/images/Cornerstone-logo.png
new file mode 100644
index 00000000..cdcbe887
Binary files /dev/null and b/images/Cornerstone-logo.png differ
diff --git a/myst.yml b/myst.yml
index 1c26d281..e76fd454 100644
--- a/myst.yml
+++ b/myst.yml
@@ -76,6 +76,7 @@ site:
     logo: images/Cornerstone-EEIO-Wordmark-dark.png
     logo_dark: images/Cornerstone-EEIO-Wordmark-white.png
     logo_alt: Cornerstone EEIO
+    favicon: images/Cornerstone-logo.png
     folders: true
     style: _parts/custom.css
   parts: