diff --git a/parse.js b/parse.js
index 391f766..662c6ae 100644
--- a/parse.js
+++ b/parse.js
@@ -1,10 +1,8 @@
 import { parse } from 'csv-parse';
 import fs from 'node:fs';
-import zlib from 'zlib';
+import zlib from 'node:zlib';
 import mysql from 'mysql2';
-import dotenv from 'dotenv';
-
-dotenv.config();
+import './lib/dotenv.js';
 
 if (process.argv.length != 3) {
     throw new Error('You should give a project dir');
@@ -43,8 +41,8 @@ const flushBatch = (batch) => {
 };
 
 // quand quelques ligne de csv sont parsées on les assemble puis on genere le sql
-parser.on('readable', function(){
-    let record;
+parser.on('readable', () =>{
+    let record = null;
     const batch = []; 
     
     while ((record = parser.read()) !== null) {
@@ -60,10 +58,10 @@ parser.on('readable', function(){
 
     flushBatch(batch);
 });
-parser.on('error', function(err){
+parser.on('error', (err) =>{
     console.error(err.message);
 });
-parser.on('end', function(){
+parser.on('end', () =>{
     connection.end();
 });
 
diff --git a/sync.js b/sync.js
index a5546cd..11accb7 100644
--- a/sync.js
+++ b/sync.js
@@ -88,7 +88,7 @@ async function importYear(connection, year, file) {
                 if (!columns) {
                     columns = Object.keys(record).map(col => `\`${col}\``);
                 }
-                const values = Object.values(record).map(v => v === '' ? null : v);
+                const values = Object.values(record).map(v => (v === '' ? null : v));
                 batch.push(values);
                 if (batch.length >= BATCH_SIZE) {
                     await flush();
@@ -128,12 +128,10 @@ async function main() {
     const dbYears = await getYearsInDb(connection);
     console.log(`Années en base : ${dbYears.join(', ')}`);
 
-    let missing;
+    let missing = serverYears.filter(y => !dbYears.includes(y));
     if (forceYear) {
         missing = [forceYear];
         console.log(`Mode forcé : import de ${forceYear}`);
-    } else {
-        missing = serverYears.filter(y => !dbYears.includes(y));
     }
 
     if (missing.length === 0) {