diff --git a/README.md b/README.md
index 3256f84..4fe97ec 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,8 @@ If you want to customise your installation, you can export them or specify them
 - `CUSTOMIZE_ENC=n`
 - `CLIENT=clientname`
 - `PASS=1`
+- `MULTI_CLIENT=n`
+- `DAYS_VALID=3650`
 
 If the server is behind NAT, you can specify its endpoint with the `ENDPOINT` variable. If the endpoint is the public IP address which it is behind, you can use `ENDPOINT=$(curl -4 ifconfig.co)` (the script will default to this). The endpoint can be an IPv4 or a domain.