diff --git a/dnsapi/README.md b/dnsapi/README.md
index 0eeeab7a..f27202ca 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -98,7 +98,7 @@ First you need to set your user:pass:database in the configuration.
 
 Ok, let's issue a cert now:
 ```
-acme.sh --issue --dns dns_pdns-mysql -d example.com -d www.example.com
+acme.sh --issue --dns dns_pdns-mysql -d example.com -d *.example.com
 ```