diff --git a/README.md b/README.md
index ecfc5f0..210ba36 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ## Introduction
 
-efi for Thinkpad T450s Hackintosh Catalina.
+efi for Thinkpad T450s (20BXCT01WW) Hackintosh Catalina.
 
 ![pic.jpg](pic.jpg)