diff --git a/_config.yml b/_config.yml
index f0a4ac89..81668ccd 100644
--- a/_config.yml
+++ b/_config.yml
@@ -60,6 +60,7 @@ exclude:
   - "papers/"
   - "slides/"
   - "vendor/"
+  - "plfa.github.io-web-*/"
   - "*.agdai"
   - "*.agda-lib"
   - "*.lagda.md"