diff --git a/packages/backend/src/misc/process-masto-notes.ts b/packages/backend/src/misc/process-masto-notes.ts
index 2fe7c7a58..f51764ae8 100644
--- a/packages/backend/src/misc/process-masto-notes.ts
+++ b/packages/backend/src/misc/process-masto-notes.ts
@@ -4,7 +4,7 @@ import { createTemp, createTempDir } from "./create-temp.js";
 import { downloadUrl } from "./download-url.js";
 import { addFile } from "@/services/drive/add-file.js";
 import { Users } from "@/models/index.js";
-import * as tar from 'tar-stream';
+import * as tar from "tar-stream";
 import gunzip from "gunzip-maybe";
 
 const logger = new Logger("process-masto-notes");
@@ -33,7 +33,7 @@ export async function processMastoNotes(
 function processMastoFile(fn: string, dir: string, uid: string) {
 	return new Promise(async (resolve, reject) => {
 		const user = await Users.findOneBy({ id: uid });
-		try{
+		try {
 			logger.info(`Start unzip ${fn}`);
 			await unzipTarGz(fn, dir);
 			logger.info(`Unzip to ${dir}`);
@@ -51,51 +51,58 @@ function processMastoFile(fn: string, dir: string, uid: string) {
 				}
 			}
 			resolve(outbox);
-		}catch(e){
+		} catch (e) {
 			logger.error(`Error on extract masto note package: ${fn}`);
 			reject(e);
 		}
 	});
 }
 
-function createFileDir(fn: string){
-	if(!fs.existsSync(fn)){
-		fs.mkdirSync(fn, {recursive: true});
+function createFileDir(fn: string) {
+	if (!fs.existsSync(fn)) {
+		fs.mkdirSync(fn, { recursive: true });
 		fs.rmdirSync(fn);
 	}
 }
 
-function unzipTarGz(fn: string, dir: string){
+function unzipTarGz(fn: string, dir: string) {
 	return new Promise(async (resolve, reject) => {
 		const onErr = (err: any) => {
 			logger.error(`pipe broken: ${err}`);
 			reject();
-		}
-		try{
-			const extract = tar.extract().on('error', onErr);
+		};
+		try {
+			const extract = tar.extract().on("error", onErr);
 			dir = dir.endsWith("/") ? dir : dir + "/";
 			const ls: string[] = [];
-			extract.on('entry', function (header: any, stream: any, next: any) {
-				try{
+			extract.on("entry", function (header: any, stream: any, next: any) {
+				try {
 					ls.push(dir + header.name);
 					createFileDir(dir + header.name);
-					stream.on('error', onErr).pipe(fs.createWriteStream(dir + header.name)).on('error', onErr);
+					stream
+						.on("error", onErr)
+						.pipe(fs.createWriteStream(dir + header.name))
+						.on("error", onErr);
 					next();
-				}catch(e){
+				} catch (e) {
 					logger.error(`create dir error:${e}`);
 					reject();
 				}
 			});
 
-			extract.on('finish', function () {
-			  resolve(ls);
+			extract.on("finish", function () {
+				resolve(ls);
 			});
-			
-			fs.createReadStream(fn).on('error', onErr).pipe(gunzip()).on('error', onErr).pipe(extract).on('error', onErr);
-			
-		}catch(e){
+
+			fs.createReadStream(fn)
+				.on("error", onErr)
+				.pipe(gunzip())
+				.on("error", onErr)
+				.pipe(extract)
+				.on("error", onErr);
+		} catch (e) {
 			logger.error(`unzipTarGz error: ${e}`);
 			reject();
 		}
 	});
-}
\ No newline at end of file
+}