diff --git a/atlas.json b/atlas.json
index 12a87de4..dd986d3e 100644
--- a/atlas.json
+++ b/atlas.json
@@ -15,6 +15,7 @@
     "chapters/signatures.adoc",
     "chapters/fees.adoc",
     "ch08.asciidoc",
+    "ch09.asciidoc",
     "author_bio.html"
   ],
   "formats": {