diff --git a/README.md b/README.md
index d9c6e67..f33c2b3 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ bench focus on a specific point of impact in your application.
 
 Matcha is available on npm.
 
-      $ npm install matcha
+      $ npm install matcha -g
 
 ## Writing Async Benchmarks