diff --git a/source/_addons/duckdns.markdown b/source/_addons/duckdns.markdown
index 38c947eb6e3..d1726880996 100644
--- a/source/_addons/duckdns.markdown
+++ b/source/_addons/duckdns.markdown
@@ -25,12 +25,29 @@ featured: true
 }
 ```
 
-Configuration variables:
-
-- **lets_encrypt.accept_terms** (*Required*): If you accept the [Let's Encrypt Subscriber Agreement](https://letsencrypt.org/repository/), it will generate and update Let's Encrypt certificates for your DuckDNS domain.
-- **token** (*Required*): Your Duck DNS API key, from your DuckDNS account page.
-- **domains** (*Required*): A list of domains to update DNS.
-- **seconds** (*Required*): Seconds between updates to Duck DNS.
+{% configuration %}
+lets_encrypt:
+  description: Let's Encrypt is a free, automated, and open certificate authority.
+  required: true
+  type: list
+  keys:
+    accept_terms:
+      description: If you accept the [Let's Encrypt Subscriber Agreement](https://letsencrypt.org/repository/), it will generate and update Let's Encrypt certificates for your DuckDNS domain.
+      required: true
+      type: boolean
+token:
+  description: Your Duck DNS API key, from your DuckDNS account page.
+  required: true
+  type: string
+domains:
+  description: A list of domains to update DNS.
+  required: true
+  type: list
+seconds:
+  description: Seconds between updates to Duck DNS.
+  required: true
+  type: integer
+{% endconfiguration %}
 
 ## {% linkable_title Home Assistant configuration %}
 
@@ -51,4 +68,4 @@ You'll need to forward the port you listed in your configuration (8123 in the ex
 
 Ensure that you allocate the Home Assistant system a fixed IP on your network before you configure port forwarding. You can do this either on the computer itself (see the [install guide](/hassio/installation/) or via a static lease on your router.
 
-Restart Home Assistant for the configured changes to take effect. When you access the Home Assistant frontend you will now need to use `https`, even when accessing local instances, for example at `https://192.168.0.1:8123`. 
+Restart Home Assistant for the configured changes to take effect. When you access the Home Assistant frontend you will now need to use `https`, even when accessing local instances, for example at `https://192.168.0.1:8123`.