diff --git a/1-js/08-prototypes/01-prototype-inheritance/article.md b/1-js/08-prototypes/01-prototype-inheritance/article.md
index 02236af7..54a0261f 100644
--- a/1-js/08-prototypes/01-prototype-inheritance/article.md
+++ b/1-js/08-prototypes/01-prototype-inheritance/article.md
@@ -287,7 +287,7 @@ for(let prop in rabbit) alert(prop); // jumps, then eats
 */!*
 ```
 
-If that's not what we want, and we'd like to exclude inherited properties, there's a built-in method [obj.hasOwnProperty(key)](mdn:js/Object/hasOwnProperty): it returns `true` if `obj` has its own (not inherited) property named `key`.
+If that's not what we want, and we'd like to exclude inherited properties, there's a built-in method [obj.hasOwnProperty(key)](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty): it returns `true` if `obj` has its own (not inherited) property named `key`.
 
 So we can filter out inherited properties (or do something else with them):