diff --git a/docs/configuration/acme.md b/docs/configuration/acme.md
index d6f3dc03e..c691410dd 100644
--- a/docs/configuration/acme.md
+++ b/docs/configuration/acme.md
@@ -313,7 +313,7 @@ For example, `CF_API_EMAIL_FILE=/run/secrets/traefik_cf-api-email` could be used
 | [Lightsail](https://aws.amazon.com/lightsail/)              | `lightsail`    | `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `DNS_ZONE`                                                                                    | Not tested yet                 |
 | [Linode](https://www.linode.com)                            | `linode`       | `LINODE_API_KEY`                                                                                                                            | Not tested yet                 |
 | [Linode v4](https://www.linode.com)                         | `linodev4`     | `LINODE_TOKEN`                                                                                                                              | Not tested yet                 |
-| manual                                                      | -              | none, but you need to run Traefik interactively, turn on `acmeLogging` to see instructions and press <kbd>Enter</kbd>.                      | YES                            |
+| manual                                                      | `manual`       | none, but you need to run Traefik interactively, turn on `acmeLogging` to see instructions and press <kbd>Enter</kbd>.                      | YES                            |
 | [MyDNS.jp](https://www.mydns.jp/)                           | `mydnsjp`      | `MYDNSJP_MASTER_ID`, `MYDNSJP_PASSWORD`                                                                                                     | YES                            |
 | [Namecheap](https://www.namecheap.com)                      | `namecheap`    | `NAMECHEAP_API_USER`, `NAMECHEAP_API_KEY`                                                                                                   | YES                            |
 | [Namesilo](https://www.namesilo.com/)                       | `namesilo`     | `NAMESILO_API_KEY`                                                                                                                          | YES                            |