diff --git a/README.rst b/README.rst
index b5e15e4..5dcb5a1 100644
--- a/README.rst
+++ b/README.rst
@@ -19,8 +19,10 @@
 Documentation
 =============
 
+.. _README-extensions: README-extensions.rst
+
 Documentation covering the original version is in the doc directory.
-See the `README-extensions.rst`_ file for documentation on the extentions.
+See the `README-extensions`_ file for documentation on the extentions.
 
 
 .. include:: ./README-extensions.rst