diff --git a/docs/source/boost-custom-install.rst b/docs/source/boost-custom-install.rst
index 34ae785..860269a 100644
--- a/docs/source/boost-custom-install.rst
+++ b/docs/source/boost-custom-install.rst
@@ -1,3 +1,5 @@
+.. _boost-custom-install:
+
 Installing boost libraries
 ==========================