diff --git a/index.js b/index.js
index 61b78f2..9f5a67d 100644
--- a/index.js
+++ b/index.js
@@ -87,14 +87,16 @@ app.post('/api/upload', (req, res) => {
     const file = req.files.file;
     const filepath = `${config.storagePath}/${file.name}`;
 
-    fs.exists(filepath, (exists) => { 
-        if (!exists) { 
+    fs.stat(filepath, (err) => {
+        if(err == null) {
+            return res.status(400).send('File exists.');
+        } else if(err.code === 'ENOENT') {
             file.mv(filepath, (err) => {
                 if (err) return res.status(500).send(err);
                 res.render('uploaded', { file: { name: file.name } });
             });
         } else {
-            return res.status(400).send('File exists.');
+            return res.sendStatus(500);
         }
     });
 });