diff --git a/specification/source/controlsLibrary.rst b/specification/source/controlsLibrary.rst
index fa9ea80d..9931fa0e 100644
--- a/specification/source/controlsLibrary.rst
+++ b/specification/source/controlsLibrary.rst
@@ -1,3 +1,5 @@
+.. _sec_con_lib:
+
 Controls Library
 ----------------