diff --git a/docs/configuration/acme.md b/docs/configuration/acme.md
index 7b453b248..cfa527b8a 100644
--- a/docs/configuration/acme.md
+++ b/docs/configuration/acme.md
@@ -265,7 +265,7 @@ Here is a list of supported `provider`s, that can automate the DNS verification,
 | [DNS Made Easy](https://dnsmadeeasy.com)               | `dnsmadeeasy`  | `DNSMADEEASY_API_KEY`, `DNSMADEEASY_API_SECRET`, `DNSMADEEASY_SANDBOX`                                                          | Not tested yet                 |
 | [DNSPod](http://www.dnspod.net/)                       | `dnspod`       | `DNSPOD_API_KEY`                                                                                                                | Not tested yet                 |
 | [DreamHost](https://www.dreamhost.com/)                | `dreamhost`    | `DREAMHOST_API_KEY`                                                                                                             | YES                            |
-| [Duck DNS](https://www.duckdns.org/)                   | `duckdns`      | `DUCKDNS_TOKEN`                                                                                                                 | Not tested yet                 |
+| [Duck DNS](https://www.duckdns.org/)                   | `duckdns`      | `DUCKDNS_TOKEN`                                                                                                                 | No                             |
 | [Dyn](https://dyn.com)                                 | `dyn`          | `DYN_CUSTOMER_NAME`, `DYN_USER_NAME`, `DYN_PASSWORD`                                                                            | Not tested yet                 |
 | External Program                                       | `exec`         | `EXEC_PATH`                                                                                                                     | Not tested yet                 |
 | [Exoscale](https://www.exoscale.ch)                    | `exoscale`     | `EXOSCALE_API_KEY`, `EXOSCALE_API_SECRET`, `EXOSCALE_ENDPOINT`                                                                  | YES                            |