diff --git a/content/courses/advanced-ada/parts/resource_management/controlled_types.rst b/content/courses/advanced-ada/parts/resource_management/controlled_types.rst
index 72635a7b7..22d3707a6 100644
--- a/content/courses/advanced-ada/parts/resource_management/controlled_types.rst
+++ b/content/courses/advanced-ada/parts/resource_management/controlled_types.rst
@@ -281,6 +281,8 @@ When we run this application, we see the user messages indicating the calls to
    the :ada:`Show_Controlled_Types` procedure by a null statement (:ada:`null`).
 
 
+.. _Adv_Ada_Controlled_Types_Overview_Adjustment:
+
 Adjustment of controlled objects
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~