diff --git a/1-js/06-advanced-functions/10-bind/article.md b/1-js/06-advanced-functions/10-bind/article.md
index 364146fd..e0457915 100644
--- a/1-js/06-advanced-functions/10-bind/article.md
+++ b/1-js/06-advanced-functions/10-bind/article.md
@@ -167,7 +167,7 @@ sayHi(); // Hello, John!
 setTimeout(sayHi, 1000); // Hello, John!
 
 // even if the value of user changes within 1 second
-// sayHi uses the pre-bound value
+// sayHi uses the pre-bound value which is reference to old user object
 user = {
   sayHi() { alert("Another user in setTimeout!"); }
 };