diff --git a/README.md b/README.md
index ba6e427..93cb076 100644
--- a/README.md
+++ b/README.md
@@ -60,4 +60,12 @@ else if (bowser.c) {
 }
 else {
   // unsupported (bowser.x)
-}
\ No newline at end of file
+}
+
+Building
+---------
+
+If you'd like to contribute a change to bowser, modify the files in src/, then run the following (you'll need node + npm installed):
+
+    $ npm install
+    $ make