diff --git a/providers/dns/pdns/README.md b/providers/dns/pdns/README.md
index 23abb766..a59b9ad8 100644
--- a/providers/dns/pdns/README.md
+++ b/providers/dns/pdns/README.md
@@ -4,4 +4,4 @@ Tested and confirmed to work with PowerDNS authoratative server 3.4.8 and 4.0.1.
 
 PowerDNS Notes:
 - PowerDNS API does not currently support SSL, therefore you should take care to ensure that traffic between lego and the PowerDNS API is over a trusted network, VPN etc.
-- In order to have the SOA serial automatically increment each time the `_acme-challenge` record is added/modified via the API, set `SOA-API-EDIT` to `INCEPTION-INCREMENT` for the zone in the `domainmetadata` table
+- In order to have the SOA serial automatically increment each time the `_acme-challenge` record is added/modified via the API, set `SOA-EDIT-API` to `INCEPTION-INCREMENT` for the zone in the `domainmetadata` table