diff --git a/locale/en/docs/guides/simple-profiling.md b/locale/en/docs/guides/simple-profiling.md
index 1ad68f3211018..16f4e5e1b56e7 100644
--- a/locale/en/docs/guides/simple-profiling.md
+++ b/locale/en/docs/guides/simple-profiling.md
@@ -37,7 +37,7 @@ app.get('/newUser', (req, res) => {
 
   username = username.replace(/[!@#$%^&*]/g, '');
 
-  if (!username || !password || users.username) {
+  if (!username || !password || users[username]) {
     return res.sendStatus(400);
   }