diff --git a/web/book/src/SUMMARY.md b/web/book/src/SUMMARY.md
index b3358d738748..2ce1f9175e33 100644
--- a/web/book/src/SUMMARY.md
+++ b/web/book/src/SUMMARY.md
@@ -31,7 +31,7 @@
   - [Comments](./reference/syntax/comments.md)
   - [Parameters](./reference/syntax/parameters.md)
 
-- [Importing data](./reference/data/readme.md)
+- [Importing data](./reference/data/README.md)
 
   - [From](./reference/data/from.md)
   - [Reading files](./reference/data/read-files.md)