diff --git a/README.md b/README.md
index 54c0a97..e359c6a 100644
--- a/README.md
+++ b/README.md
@@ -83,7 +83,7 @@ Use can use the following configuration in your `docker-compose.yml`:
 ```yaml
 environment:
   NGINX_DOCUMENT_ROOT: /var/www/web
-  NGINX_PROXY_PASS: app:3000
+  NGINX_PROXY_PASS: http://app:3000
 ```
 
 ### Drupal