diff --git a/1-js/09-classes/03-static-properties-methods/article.md b/1-js/09-classes/03-static-properties-methods/article.md
index 583fabcf..8e08514f 100644
--- a/1-js/09-classes/03-static-properties-methods/article.md
+++ b/1-js/09-classes/03-static-properties-methods/article.md
@@ -192,7 +192,7 @@ class Rabbit extends Animal {}
 alert(Rabbit.__proto__ === Animal); // true
 
 // for regular methods
-alert(Rabbit.prototype.__proto__ === Animal.prototype);
+alert(Rabbit.prototype.__proto__ === Animal.prototype); // true
 ```
 
 ## Summary