diff --git a/packages/backend/src/server/api/mastodon/MastodonConverters.ts b/packages/backend/src/server/api/mastodon/MastodonConverters.ts
index 42a1836e5c..7307ec38e3 100644
--- a/packages/backend/src/server/api/mastodon/MastodonConverters.ts
+++ b/packages/backend/src/server/api/mastodon/MastodonConverters.ts
@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Entity, MastodonEntity, MisskeyEntity } from 'megalodon';
-import mfm from 'mfm-js';
+import * as mfm from 'mfm-js';
 import { MastodonNotificationType } from 'megalodon/lib/src/mastodon/notification.js';
 import { NotificationType } from 'megalodon/lib/src/notification.js';
 import { DI } from '@/di-symbols.js';