diff --git a/README.md b/README.md
index 69358cf..e2254b9 100644
--- a/README.md
+++ b/README.md
@@ -49,8 +49,8 @@ import {fetch, CookieJar} from "node-fetch-cookies";
 
 ## Documentation
 
-### async fetch(cookieJar, url[, options])
-- `cookieJar` A [CookieJar](#class-cookiejar) instance, an array of CookieJar instances or null, if you don't want to send or store cookies.
+### async fetch(cookieJars, url[, options])
+- `cookieJars` A [CookieJar](#class-cookiejar) instance, an array of CookieJar instances or null, if you don't want to send or store cookies.
 - `url` and `options` as in https://github.com/bitinn/node-fetch#fetchurl-options
 
 Returns a Promise resolving to a [Response](https://github.com/bitinn/node-fetch#class-response) instance on success.