diff --git a/lab4/main_test.js b/lab4/main_test.js
index 942a2140..2b4696ca 100644
--- a/lab4/main_test.js
+++ b/lab4/main_test.js
@@ -25,3 +25,4 @@ const puppeteer = require('puppeteer');
 
     await browser.close();
 })();
+