diff --git a/docs/guide/essentials/pluralization.md b/docs/guide/essentials/pluralization.md
index 530e8ae30..ea5dc728a 100644
--- a/docs/guide/essentials/pluralization.md
+++ b/docs/guide/essentials/pluralization.md
@@ -152,7 +152,7 @@ like the the following locale:
 ```js
 const i18n = createI18n({
   locale: 'ru',
-  // the custom rules here ...
+  // use pluralRules for Composition api
   pluralizationRules: {
     ru: customRule
   },