diff --git a/_toc.yml b/_toc.yml
index 03ef905..8d5036d 100644
--- a/_toc.yml
+++ b/_toc.yml
@@ -27,5 +27,5 @@ parts:
         title: Doctoral Board Oral Exam
       - url: https://j1c.github.io/talks/committee/committee.html
         title: Research Defence
-      - url: https://j1c.github.io/talks/defense/defence.html
+      - url: https://j1c.github.io/talks/defense/defense.html
         title: PhD Defense