diff --git a/README b/README
index 0702a30..94d58f6 100644
--- a/README
+++ b/README
@@ -4,6 +4,7 @@ USAGE
 MODELS
 	mbp101 - MacBook Pro 10,1
 	mba52  - MacBook Air 5,2
+	mba42  - MacBook Air 4,2
 
 LICENSE
 	BSD-2c