diff --git a/server/lib/client-html.ts b/server/lib/client-html.ts
index fc013e0c3..006b25bfd 100644
--- a/server/lib/client-html.ts
+++ b/server/lib/client-html.ts
@@ -116,7 +116,7 @@ export class ClientHtml {
 
       'og:video:url': embedUrl,
       'og:video:secure_url': embedUrl,
-      'og:video:type': 'text/html',
+      'og:video:type': 'video/mp4',
       'og:video:width': EMBED_SIZE.width,
       'og:video:height': EMBED_SIZE.height,