diff --git a/1-js/04-object-basics/01-object/article.md b/1-js/04-object-basics/01-object/article.md
index ca720429..30858607 100644
--- a/1-js/04-object-basics/01-object/article.md
+++ b/1-js/04-object-basics/01-object/article.md
@@ -352,7 +352,7 @@ let user = {
 
 for(let key in user) {
   // keys
-  alert( key );  // name, age, 30
+  alert( key );  // name, age, isAdmin
   // values for the keys
   alert( user[key] ); // John, 30, true
 }