diff --git a/README.md b/README.md
index 26f1406..4c53e26 100644
--- a/README.md
+++ b/README.md
@@ -143,6 +143,7 @@ You can specify configuration options either via a config file (default: `config
 | `server.tls_cert_path` /<br> `WAKAPI_TLS_CERT_PATH`                          | -                                                | Path of SSL server certificate (leave blank to not use HTTPS)                                                                                                            |
 | `server.tls_key_path` /<br> `WAKAPI_TLS_KEY_PATH`                            | -                                                | Path of SSL server private key (leave blank to not use HTTPS)                                                                                                            |
 | `server.base_path` /<br> `WAKAPI_BASE_PATH`                                  | `/`                                              | Web base path (change when running behind a proxy under a sub-path)                                                                                                      |
+| `server.public_url` /<br> `WAKAPI_PUBLIC_URL`                                | `http://localhost:3000`                          | URL at which your Wakapi instance can be found publicly                                                                                                                  |
 | `security.password_salt` /<br> `WAKAPI_PASSWORD_SALT`                        | -                                                | Pepper to use for password hashing                                                                                                                                       |
 | `security.insecure_cookies` /<br> `WAKAPI_INSECURE_COOKIES`                  | `false`                                          | Whether or not to allow cookies over HTTP                                                                                                                                |
 | `security.cookie_max_age` /<br> `WAKAPI_COOKIE_MAX_AGE`                      | `172800`                                         | Lifetime of authentication cookies in seconds or `0` to use [Session](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Define_the_lifetime_of_a_cookie) cookies |