diff --git a/extra/cache-extra/README.md b/extra/cache-extra/README.md
index 8ad17d3c2..9db5195cc 100644
--- a/extra/cache-extra/README.md
+++ b/extra/cache-extra/README.md
@@ -4,4 +4,6 @@ Cache Extension
 This package is a Twig extension that provides integration with the Symfony
 Cache component.
 
-It provides a single `cache` tag that allows to cache template fragments.
+It provides a single [`cache`][1] tag that allows to cache template fragments.
+
+[1]: https://twig.symfony.com/cache