diff --git a/README.md b/README.md
index 14445a1b..d03b1e65 100644
--- a/README.md
+++ b/README.md
@@ -268,7 +268,7 @@ heroku config:set APP_NAME=app-name
 ```
 
 ```
-heroku config:set PG_BACKUP_PASSWORD=$(openssl rand -base64 32)
+heroku config:set PG_BACKUP_KEY=$(openssl rand -base64 32)
 ```
 
 ```