diff --git a/readme.md b/readme.md
index 669338d..1af6f19 100644
--- a/readme.md
+++ b/readme.md
@@ -44,7 +44,7 @@ require('dagger.js').initialize(__dirname);
 You then start the server with a command like this:
 
 ```bash
-NODE_ENV=development node start.js
+$ NODE_ENV=development node start.js
 ```
 
 ### Models