diff --git a/dnsapi/README.md b/dnsapi/README.md
index 8c43806c..ba36b897 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -92,6 +92,22 @@ acme.sh --issue --dns dns_pdns -d example.com -d www.example.com
 
 The `PDNS_Url`, `PDNS_ServerId`, `PDNS_Token` and `PDNS_Ttl` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
+## 5a. Use PowerDNS mysql backend to automatically issue cert
+
+First you need to login to your PowerDNS account to enable the API and set your API-Token in the configuration.
+
+https://doc.powerdns.com/md/httpapi/README/
+
+```
+export PDNS_Url="http://ns.example.com:8081"
+export PDNS_ServerId="localhost"
+export PDNS_Token="0123456789ABCDEF"
+export PDNS_Ttl=60
+```
+
+Ok, let's issue a cert now:
+```
+acme.sh --issue --dns dns_pdns-mysql -d example.com -d www.example.com
 
 ## 6. Use OVH/kimsufi/soyoustart/runabove API to automatically issue cert