Index: src/routes/og.js
===================================================================
--- src/routes/og.js	(revision d9c5eb825f0e52ae97cc1f60c9486b42d53b3795)
+++ src/routes/og.js	(revision 421046ce80a3254724b8e5bd17b73954a9de1e37)
@@ -14,5 +14,5 @@
   try {
     site = db.prepare(
-      'SELECT slug, title, tagline, description, palette, accent, theme_override FROM sites WHERE slug = ?'
+      'SELECT slug, title, tagline, description, palette, accent, theme_override, og_theme FROM sites WHERE slug = ?'
     ).get(req.params.slug);
   } catch { /* db error → 404 below */ }