diff --git a/blog/layouts/partials/head-additions.html b/blog/layouts/partials/head-additions.html
index d27d745..e2dc975 100644
--- a/blog/layouts/partials/head-additions.html
+++ b/blog/layouts/partials/head-additions.html
@@ -6,6 +6,8 @@
 {{ end }}
 <!-- https://blog.joinmastodon.org/2024/07/highlighting-journalism-on-mastodon/ -->
 <meta name="fediverse:creator" content="scubbo@fosstodon.org" />
+<!-- This is a prerequisite for the fediverse crediting behaviour on the line above - see https://ogp.me/ -->
+<meta property="og:image" content="https://avatars.githubusercontent.com/u/2373726?s=400&v=4" />
 <!-- https://stackoverflow.com/a/70385342/1040915 -->
 <script src="/js/custom.js" defer></script>
 <link rel="stylesheet" href="/css/custom.css">