diff --git a/README.md b/README.md
index 893d484..74322e4 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,9 @@ force_ssl: True
 # either "False", "True" or a dict *phpconfig*, see below for definition
 php: False
 
+# dict of ips to accept "X-Forwarded-~" from
+real_ip_from: {"127.0.0.1": {}, "::1": {}}
+
 ```
 
 **upstreamconfig**: