diff --git a/apps/app.js b/apps/app.js
index 282fd8b..ba6ef77 100644
--- a/apps/app.js
+++ b/apps/app.js
@@ -18,6 +18,7 @@ router.get('/version', async (req, res) => {
     const queryParams = [];
 
     if (os_type) {
+      query += ' ';
       query += 'WHERE os_type = ?';
       queryParams.push(os_type);
     }