diff --git a/docs/index.rst b/docs/index.rst
index e0c3fd4..67fe39d 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -93,6 +93,7 @@ Section listing
    iterutils
    jsonutils
    listutils
+   mathutils
    mboxutils
    namedutils
    queueutils