diff --git a/deployhooks.md b/deployhooks.md
index cce9048..b493e25 100644
--- a/deployhooks.md
+++ b/deployhooks.md
@@ -29,6 +29,14 @@ Currently supports Kong-v0.10.x.
 acme.sh --deploy -d ftp.example.com --deploy-hook kong
 ```
 
+It deploys to `"http://localhost:8001"` by default, you can specify the kong url to deploy:
+
+```
+export KONG_URL="http://you.kong.url:port"
+acme.sh --deploy -d ftp.example.com --deploy-hook kong
+```
+
+
 ## 3. Deploy the cert to remote server through SSH access
 
 The ssh deploy plugin allows you to deploy certificates to a remote host