diff --git a/src/jquery.sidebar.js b/src/jquery.sidebar.js
index <HASH>..<HASH> 100644
--- a/src/jquery.sidebar.js
+++ b/src/jquery.sidebar.js
@@ -22,6 +22,7 @@
      * $(".my-sidebar").trigger("sidebar:open");
      * $(".my-sidebar").trigger("sidebar:close");
      * $(".my-sidebar").trigger("sidebar:toggle");
+     * $(".my-sidebar").trigger("sidebar:close", [{ speed: 0 }]);
      * ```
      *
      * After the sidebar is opened/closed, `sidebar:opened`/`sidebar:closed` event is emitted.
Improved a documentation comment

according to a manual change in README.md