diff --git a/README.md b/README.md
index c398815..4aafa81 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ go get github.com/momaek/authy
 
 ### *Optional Configuration*
 By default, the authy config file (.authy.json) and cache (.authy.cache) are stored in `$HOME`.
-A custom configuration directory can be set with the environment variable `AUTHY_ROOT`
+A custom configuration directory can be set with the environment variable `$AUTHY_ROOT`
 
 e.g.
 ```
@@ -34,6 +34,7 @@ export AUTHY_ROOT=~/.dotfiles/secrets/authy
 ```
 the example above would create the config file `~/.dotfiles/secrets/authy/.authy.json`
 
+
 #### Attention
 To use this tool, you should enable *Allow Multi-Device* in your Authy App