diff --git a/api/src/services/inbox/inbox.service.ts b/api/src/services/inbox/inbox.service.ts
index d1fb2a30..8f87ea0d 100644
--- a/api/src/services/inbox/inbox.service.ts
+++ b/api/src/services/inbox/inbox.service.ts
@@ -107,6 +107,7 @@ export class InboxService {
         'hr',
         'li',
         'main',
+        'marquee',
         'ol',
         'p',
         'pre',