diff --git a/index.html b/index.html
index 7ddd6d9..656dcf1 100644
--- a/index.html
+++ b/index.html
@@ -21,6 +21,10 @@ <h2>Explainers</h2>
         This document is an attempt to try and provide an explanation for why the PaymentRequest API
         is structured the way it is and our goals in choosing such a direction.
         </dd>
+        <dt><a href="https://github.com/WICG/paymentrequest/blob/gh-pages/docs/registration.md">Payment App Registration</a></dt>
+        <dd>
+        This is a proposal for how Payment App registration could work in conjunction with the PaymentRequest API.
+        </dd>
         <dt><a href="https://github.com/WICG/paymentrequest/blob/gh-pages/docs/explainer.md">PaymentRequest Explainer</a></dt>
         <dd>
         The (slightly outdated) explainer document describes the original motivation for the API proposal.