diff --git a/README.md b/README.md
index 061e48f..31719c4 100755
--- a/README.md
+++ b/README.md
@@ -153,6 +153,7 @@ Advanced manual setups are also supported. Check the following environment varia
 | ZU_DEFAULT_USERNAME | unset (`docker-compose.yml`: admin) | Default username that will be set on the first run |
 | ZU_DEFAULT_PASSWORD | unset (`docker-compose.yml`: zero-ui) | Default password that will be set on the first run |
 | ZU_DATAPATH | `data/db.json` | ZeroUI data storage path |
+| ZU_DISABLE_AUTH | unset | If set to true, automatically log in all users. This is useful if ZeroUI is protected by an authentication proxy |
 
 ZeroUI could be deployed as a regular nodejs web application, but it requires ZeroTier controller that is installed with `zerotier-one` package. More info about the network controller you could read [here](https://github.com/zerotier/ZeroTierOne/tree/master/controller/#readme).