diff --git a/specification/push_gateway.rst b/specification/push_gateway.rst
index 74f9e35ed..e46238875 100644
--- a/specification/push_gateway.rst
+++ b/specification/push_gateway.rst
@@ -41,6 +41,7 @@ Other versions of this specification
 The following other versions are also available, in reverse chronological order:
 
 - `HEAD <https://matrix.org/docs/spec/push_gateway/unstable.html>`_: Includes all changes since the latest versioned release.
+- `r0.1.0 <https://matrix.org/docs/spec/push_gateway/r0.1.0.html>`_
 
 Overview
 --------