diff --git a/README-extentions.rst b/README-extentions.rst
index 49ef1d4..61364a4 100644
--- a/README-extentions.rst
+++ b/README-extentions.rst
@@ -271,7 +271,7 @@
   environment: base
   exports: {}
   classes:
-  - first
+  - global
   - lab.${_class:env:override}
   - second
   parameters: