diff --git a/packages/backend/src/remote/activitypub/renderer/index.ts b/packages/backend/src/remote/activitypub/renderer/index.ts
index 2e1fbf1dd..6afdc021c 100644
--- a/packages/backend/src/remote/activitypub/renderer/index.ts
+++ b/packages/backend/src/remote/activitypub/renderer/index.ts
@@ -22,6 +22,7 @@ export const renderActivity = (x: any): IActivity | null => {
 				movedToUri: 'as:movedTo',
 				sensitive: 'as:sensitive',
 				Hashtag: 'as:Hashtag',
+				quoteUri: 'fedibird:quoteUri',
 				quoteUrl: 'as:quoteUrl',
 				// Mastodon
 				toot: 'http://joinmastodon.org/ns#',
diff --git a/packages/backend/src/remote/activitypub/renderer/note.ts b/packages/backend/src/remote/activitypub/renderer/note.ts
index b3bafaa3a..83df0b10d 100644
--- a/packages/backend/src/remote/activitypub/renderer/note.ts
+++ b/packages/backend/src/remote/activitypub/renderer/note.ts
@@ -142,6 +142,7 @@ export default async function renderNote(note: Note, dive = true, isTalk = false
 			mediaType: "text/x.misskeymarkdown",
 		},
 		_misskey_quote: quote,
+		quoteUri: quote,
 		quoteUrl: quote,
 		published: note.createdAt.toISOString(),
 		to,