diff --git a/dnsapi/README.md b/dnsapi/README.md
index 59f0e9d9..e17406e3 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -110,7 +110,7 @@ Ok, let's issue cert now:
 acme.sh   --issue   --dns dns_pdns   -d aa.com  -d www.aa.com
 ```
 
-The `PDNS_Url`, `PDNS_ServerId`, `PDNS_Token` and `PDNS_Ttl`  will be saved in `~/.acme.sh/account.conf`, when next time you use yandex domain api, it will reuse this key.
+The `PDNS_Url`, `PDNS_ServerId`, `PDNS_Token` and `PDNS_Ttl` will be saved in `~/.acme.sh/account.conf`.
 
 ## Use OVH/kimsufi/soyoustart/runabove API
 
@@ -132,8 +132,6 @@ acme.sh  --issue  --dns  dns_myapi  -d aa.com  -d www.aa.com
 
 For more details, please check our sample script: [dns_myapi.sh](dns_myapi.sh)
 
-
-
 # Use lexicon dns api
 
 https://github.com/Neilpang/acme.sh/wiki/How-to-use-lexicon-dns-api
diff --git a/dnsapi/dns_pdns.sh b/dnsapi/dns_pdns.sh
index 5e4a558c..842a5b82 100755
--- a/dnsapi/dns_pdns.sh
+++ b/dnsapi/dns_pdns.sh
@@ -40,7 +40,6 @@ dns_pdns_add() {
   _saveaccountconf PDNS_Url "$PDNS_Url"
   _saveaccountconf PDNS_ServerId "$PDNS_ServerId"
   _saveaccountconf PDNS_Token "$PDNS_Token"
-  _saveaccountconf PDNS_Ttl "$PDNS_Ttl"
 
   _debug "First detect the root zone"
   if ! _get_root $fulldomain ; then