diff --git a/_data/book-chapters.yml b/_data/book-chapters.yml
index 0a278f3d..ec36dba6 100644
--- a/_data/book-chapters.yml
+++ b/_data/book-chapters.yml
@@ -1,5 +1,5 @@
 - title: "Introduction"
-  url: "/book/practical-identity-management-with-midpoint.html#_introduction"
+  url: "/book/practical-identity-management-with-midpoint.html#00-introduction"
 
 - num: 1
   title: "Understanding Identity and Access Management"