diff --git a/docs/index.rst b/docs/index.rst
index 07e6f28..81c630d 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,4 +1,5 @@
 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. _master_index:
 
 INTEGRATION
 ===========