diff --git a/1-js/04-object-basics/04-object-methods/article.md b/1-js/04-object-basics/04-object-methods/article.md
index dca08f44..0252b795 100644
--- a/1-js/04-object-basics/04-object-methods/article.md
+++ b/1-js/04-object-basics/04-object-methods/article.md
@@ -204,7 +204,7 @@ admin['f'](); // Admin (dot or square brackets access the method – doesn't mat
 
 The rule is simple: if `obj.f()` is called, then `this` is `obj` during the call of `f`. So it's either `user` or `admin` in the example above.
 
-```smart header="Calling without an object: `this=undefined`"
+````smart header="Calling without an object: `this=undefined`"
 We can even call the function without an object at all:
 
 ```js run
@@ -220,7 +220,7 @@ In this case `this` is `undefined` in strict mode. If we try to access `this.nam
 In non-strict mode the value of `this` in such case will be the *global object* (`window` in a browser, we'll get to it later in the chapter [](info:global-object)). This is a historical behavior that `"use strict"` fixes.
 
 Usually such call is an programming error. If there's `this` inside a function, it expects to be called in an object context.
-```
+````
 
 ```smart header="The consequences of unbound `this`"
 If you come from another programming language, then you are probably used to the idea of a "bound `this`", where methods defined in an object always have `this` referencing that object.