diff --git a/README.md b/README.md
index 2672db6..e233376 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ A Crowdsec firewall bouncer based on [crowdsec-custom-bouncer](https://github.co
 - `IPTABLES_COMMENT` : if set, iptables will load the `comment` module and use the reason argument passed by [crowdsec-custom-bouncer](https://github.com/crowdsecurity/cs-custom-bouncer) as the comment
 - `IPTABLES_INSERT` : insert new firewall rules at a fixed position
 - `API_KEY` : crowdsec api key
-- `IPTABLES_USE_CHAIN` : chain to use
+- `IPTABLES_CHAIN` : chain to use
 
 ## Configuration :
 Set your custom configuration in the `crowdsec-custom-bouncer.yaml.local` file and mount it as a volume at the root of the container. See [Overriding values](https://docs.crowdsec.net/docs/next/configuration/crowdsec_configuration/#overriding-values) or [bouncers/custom](https://docs.crowdsec.net/u/bouncers/custom) for information about the configuration.