diff --git a/dnsapi.md b/dnsapi.md
index 8b9dfc6..c31d7b1 100644
--- a/dnsapi.md
+++ b/dnsapi.md
@@ -801,7 +801,7 @@ export DuckDNS_Token="<token>"
 
 Ok, let's issue a cert now:
 ```
-acme.sh --issue --dns dns_duckdns -d mydomain.duckdns.org -d *.mydomain.duckdns.org
+acme.sh --issue --dns dns_duckdns -d mydomain.duckdns.org
 ```