diff --git a/README.md b/README.md
index e4e3bd8c..e927c38c 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ $ git clone git@github.com:lrz/RubyMotion.git
 $ cd RubyMotion
 $ git submodule init
 $ git submodule update
+$ cd vm; git checkout master; cd ..
 $ bundle install
 ```