diff --git a/doc/ReleaseMixin.md b/doc/ReleaseMixin.md
index 5d58f07..50a9122 100644
--- a/doc/ReleaseMixin.md
+++ b/doc/ReleaseMixin.md
@@ -41,7 +41,7 @@ classDiagram
 ### build.py
 
 ```python
-rom os import environ
+from os import environ
 from pybuilder.core import task, init
 from ddadevops import *