diff --git a/tests/README.md b/tests/README.md
index 09e6700..8ecb067 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -19,6 +19,8 @@ export MILTER_DKIM_ENABLED=yepp
 export MILTER_TRUSTED_AUTHSERVID=my-auth-serv-id
 export MILTER_X509_ENABLED=yepp
 export MILTER_X509_TRUSTED_CN=mail.protection.outlook.com
+export MILTER_ADD_HEADER=yepp
+export MILTER_AUTHSERVID=my-auth-serv-id
 ```
 
 # Shell-1: start ExOTA-Milter