diff --git a/packages/backend/src/core/AccountMoveService.ts b/packages/backend/src/core/AccountMoveService.ts
index 72233c9332..74aa17b040 100644
--- a/packages/backend/src/core/AccountMoveService.ts
+++ b/packages/backend/src/core/AccountMoveService.ts
@@ -92,7 +92,7 @@ export class AccountMoveService {
 	 * After delivering Move activity, its local followers unfollow the old account and then follow the new one.
 	 */
 	@bindThis
-	public async moveFromLocal(src: MiLocalUser, dst: MiLocalUser | MiRemoteUser): Promise<unknown> {
+	public async moveFromLocal(src: MiLocalUser, dst: MiLocalUser | MiRemoteUser): Promise<Packed<'MeDetailed'>> {
 		const srcUri = this.userEntityService.getUserUri(src);
 		const dstUri = this.userEntityService.getUserUri(dst);