diff --git a/_config.yml b/_config.yml
index 25b7a76..803f1f7 100644
--- a/_config.yml
+++ b/_config.yml
@@ -38,7 +38,7 @@ markdown: kramdown
 kramdown:
   input: GFM
 
-exclude: ['README.md', 'LICENSE', 'src/', 'doc/']
+exclude: ['README.md', 'LICENSE', 'src/', 'doc/', 'pcre2-10.36/', 'flex_bison_2.5.24/', 'vs', 'cmake-build-debug/', 'coverage/', 'out/']
 
 currentVersion: 2.0.0
 link_license: 'https://raw.githubusercontent.com/ascii-boxes/boxes/v2.0.0/LICENSE'