diff --git a/lib/web/userRouter.js b/lib/web/userRouter.js
index 9860e0bf..83a32cb4 100644
--- a/lib/web/userRouter.js
+++ b/lib/web/userRouter.js
@@ -69,8 +69,7 @@ UserRouter.get('/me/delete/:token?', function (req, res) {
 // export the data of the authenticated user
 UserRouter.get('/me/export', function (req, res) {
   if (req.isAuthenticated()) {
-    // let output = fs.createWriteStream(__dirname + '/example.zip');
-    let archive = archiver('zip', {
+    const archive = archiver('zip', {
       zlib: { level: 3 } // Sets the compression level.
     })
     res.setHeader('Content-Type', 'application/zip')
@@ -90,14 +89,14 @@ UserRouter.get('/me/export', function (req, res) {
           ownerId: user.id
         }
       }).then(function (notes) {
-        let filenames = {}
+        const filenames = {}
         async.each(notes, function (note, callback) {
           let basename = note.title.replace(/\//g, '-') // Prevent subdirectories
           let filename
-          let suffix = ''
+          let suffix = 0
           do {
-            let seperator = typeof suffix === 'number' ? '-' : ''
-            filename = basename + seperator + suffix + '.md'
+            const separator = suffix === 0 ? '' : '-'
+            filename = basename + separator + suffix + '.md'
             suffix++
           } while (filenames[filename])
           filenames[filename] = true