diff --git a/doc/plugins.md b/doc/plugins.md
index 214a70e8f..1c69af3cf 100644
--- a/doc/plugins.md
+++ b/doc/plugins.md
@@ -25,6 +25,8 @@ Have a good idea for a new plugin?  Let’s [chat][gitter] and make it happen!
     — Custom syntax to handle text/block alignment, custom mdast block node
     type `CenterAligned`, `RightAligned`.  Rehype compatible (wraps in `div`s
     with alignment as configurable CSS class)
+*   [`remark-attr`](https://github.com/arobase-che/remark-attr)
+    — Add support for custom attributes to markdown
 *   [`remark-autolink-headings`](https://github.com/ben-eb/remark-autolink-headings)
     — Automatically add GitHub style links to headings
 *   [`remark-bookmarks`](https://github.com/ben-eb/remark-bookmarks)