diff --git a/documentation/source/modules-api.rst b/documentation/source/modules-api.rst
index d2d6158..9318e6c 100644
--- a/documentation/source/modules-api.rst
+++ b/documentation/source/modules-api.rst
@@ -1,3 +1,5 @@
+.. _modules_api:
+
 ***********
 Modules API
 ***********