diff --git a/README.md b/README.md
index 11a67ba..731b134 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,8 @@ $ nix run 'github:mitchellh/zig-overlay'
 $ nix shell 'github:mitchellh/zig-overlay#master-2021-02-13'
 # open a shell with latest nightly version
 $ nix shell 'github:mitchellh/zig-overlay#master'
+# open a shell with latest Mach nominated version
+$ nix shell 'github:mitchellh/zig-overlay#mach-latest'
 ```
 
 ### Compiler Development