diff --git a/_toc.yml b/_toc.yml
index 6e92cce..efb3702 100644
--- a/_toc.yml
+++ b/_toc.yml
@@ -20,4 +20,4 @@ root: README
 chapters:
   - title: Paper
     sections:
-      - file: paper\01-paper
+      - file: paper/01-paper