diff --git a/1-js/03-code-quality/06-polyfills/article.md b/1-js/03-code-quality/06-polyfills/article.md
index 19404b7b5f..32df83f459 100644
--- a/1-js/03-code-quality/06-polyfills/article.md
+++ b/1-js/03-code-quality/06-polyfills/article.md
@@ -71,7 +71,7 @@ if (!Math.trunc) { // if no such function
 
 JavaScript is a highly dynamic language. Scripts may add/modify any function, even built-in ones.
 
-Two interesting polyfill libraries are:
+One interesting polyfill library is:
 - [core js](https://github.com/zloirock/core-js) that supports a lot, allows to include only needed features.