diff --git a/dist/index.js b/dist/index.js
index 5e0a94f..86777c2 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -218,7 +218,7 @@ app.post('/', uploadZip.single('dataset'), async (req, res, next) => {
     let fileExists;
     let id;
     req.setTimeout(0);
-    if (typeof req.file === 'undefined' && req.file === null) {
+    if (typeof req.file === 'undefined' || req.file === null) {
         console.error('No file in upload');
         return next('ERROR: Please upload dataset as zip file');
     }
@@ -269,7 +269,7 @@ app.post('/job/:id', uploadOnnx.single('model'), async (req, res, next) => {
     let meta = null;
     let id;
     req.setTimeout(0);
-    if (typeof req.file === 'undefined' && req.file === null) {
+    if (typeof req.file === 'undefined' || req.file === null) {
         console.error('No file in upload');
         return next('ERROR: Please model as ONNX file');
     }