diff --git a/docs/book/content/api/public_api.rst b/docs/book/content/api/public_api.rst
index b4ddbfa3f..5a158a83d 100644
--- a/docs/book/content/api/public_api.rst
+++ b/docs/book/content/api/public_api.rst
@@ -12,6 +12,7 @@ There is also a link to the source code for each documented member.
    :maxdepth: 1
 
    aggregates
+   demographics
    elliptical_u_est
    execute
    firm