diff --git a/apps/app.js b/apps/app.js
index d1f4da4..282fd8b 100644
--- a/apps/app.js
+++ b/apps/app.js
@@ -9,7 +9,7 @@ const router = express.Router();
 router.get('/push', HandlePush);
 
 router.get('/version', async (req, res) => {
-  const {os_type} = res.query;
+  const {os_type} = req.query;
 
   try {
     const connection = await createDatabaseConnection(dbConfig);
@@ -24,7 +24,7 @@ router.get('/version', async (req, res) => {
     // const [rows] = await connection.query('SELECT * FROM version');
     const [rows] = await connection.query(query, queryParams);
     await connection.end();
-    
+
     res.json(rows);
   } catch (err) {
     res.status(500).json({ error: err.message });