diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 6564a64d30..71c0c0a55d 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -228,13 +228,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 	}
 
 	@bindThis
-	public async create(user: {
-		id: MiUser['id'];
-		username: MiUser['username'];
-		host: MiUser['host'];
-		isBot: MiUser['isBot'];
-		noindex: MiUser['noindex'];
-	}, data: Option, silent = false): Promise<MiNote> {
+	public async create(user: MiUser, data: Option, silent = false): Promise<MiNote> {
 		// チャンネル外にリプライしたら対象のスコープに合わせる
 		// (クライアントサイドでやっても良い処理だと思うけどとりあえずサーバーサイドで)
 		if (data.reply && data.channel && data.reply.channelId !== data.channel.id) {
@@ -435,13 +429,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 	}
 
 	@bindThis
-	public async import(user: {
-		id: MiUser['id'];
-		username: MiUser['username'];
-		host: MiUser['host'];
-		isBot: MiUser['isBot'];
-		noindex: MiUser['noindex'];
-	}, data: Option): Promise<MiNote> {
+	public async import(user: MiUser, data: Option): Promise<MiNote> {
 		return this.create(user, data, true);
 	}
 
@@ -552,13 +540,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 	}
 
 	@bindThis
-	private async postNoteCreated(note: MiNote, user: {
-		id: MiUser['id'];
-		username: MiUser['username'];
-		host: MiUser['host'];
-		isBot: MiUser['isBot'];
-		noindex: MiUser['noindex'];
-	}, data: Option, silent: boolean, tags: string[], mentionedUsers: MinimumUser[]) {
+	private async postNoteCreated(note: MiNote, user: MiUser, data: Option, silent: boolean, tags: string[], mentionedUsers: MinimumUser[]) {
 		this.notesChart.update(note, true);
 		if (note.visibility !== 'specified' && (this.meta.enableChartsForRemoteUser || (user.host == null))) {
 			this.perUserNotesChart.update(user, note, true);