diff --git a/doc/source/index.rst b/doc/source/index.rst
index 00c4e9a..f70cdd1 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -32,6 +32,7 @@
    field_guide/stress
    field_guide/thirdparty
    field_guide/whitebox
+   field_guide/unit_tests
 
 ------------------
 API and test cases