diff --git a/layouts/index.xml b/layouts/index.xml
index 3a97292..86428e1 100644
--- a/layouts/index.xml
+++ b/layouts/index.xml
@@ -20,7 +20,11 @@
     <language>{{.}}</language>{{end}}{{ with .Site.Author.email }}
     <managingEditor>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</managingEditor>{{end}}{{ with .Site.Author.email }}
     <webMaster>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</webMaster>{{end}}{{ with .Site.Copyright }}
-    <copyright>{{.}}</copyright>{{end}}{{ if not .Date.IsZero }}
+    <copyright>{{.}}</copyright>{{end}}{{with .Site.Author.FollowClaim.feedId }}
+    <follow_challenge>
+      <feedId>{{ .Site.FollowClaim.feedId }}</feedId>
+      <userId>{{ .Site.FollowClaim.userId }}</userId>
+    </follow_challenge>{{end}}{{ if not .Date.IsZero }}
     <lastBuildDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</lastBuildDate>{{ end }}
     {{- with .OutputFormats.Get "RSS" -}}
     {{ printf "<atom:link href=%q rel=\"self\" type=%q />" .Permalink .MediaType | safeHTML }}