diff --git a/components/button/index.en-US.md b/components/button/index.en-US.md
index df83222620..a58c056076 100644
--- a/components/button/index.en-US.md
+++ b/components/button/index.en-US.md
@@ -16,11 +16,11 @@ To get a customized button, just set `type`/`shape`/`size`/`loading`/`disabled`.
 
 Property | Description | Type | Default
 -----|-----|-----|------
-type | can be set as `primary` `ghost` or nothing | string | -
+type | can be set to `primary` `ghost` or omitted | string | -
 htmlType | to set the original `type` of `button`, see: [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#attr-type) | string | `button`
 icon | set the icon of button, see: Icon component | string | -
-shape | can be set as `circle` `circle-outline` or nothing | string | -
-size | can be set as `small` `large` or nothing | string | `default`
+shape | can be set to `circle` `circle-outline` or omitted | string | -
+size | can be set to `small` `large` or omitted | string | `default`
 loading | to set the loading status of button | boolean | false
 onClick | set the handler to handle `click` event | function | -