diff --git a/index.js b/index.js
index 4badd5a..e6e1742 100644
--- a/index.js
+++ b/index.js
@@ -208,7 +208,7 @@ app.post('/api/login', (req, res) => {
 
             return;
         }
-        auth.startVerification(req.body.email, getIP(req, req.get('User-Agent'))).then(async result => {
+        auth.startVerification(req.body.email, getIP(req, req.get('user-agent'))).then(async result => {
             if (result.status === 1 || result.status === -1) {
                 req.session.userId = result.uid;