diff --git a/duckdns/DOCS.md b/duckdns/DOCS.md
index e2ae592..4218918 100644
--- a/duckdns/DOCS.md
+++ b/duckdns/DOCS.md
@@ -62,7 +62,7 @@ The name of the private key file generated by Let's Encrypt. The private key fil
 
 **Note**: _The file is stored in `/ssl/`, which is the default for Home Assistant_
 
-#### Option `lets_encrypt.algo` (optional)
+#### Option `lets_encrypt.algo`
 
 Public key algorithm that will be used.