diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..f1d0f13
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - 0.4
+  - 0.6
diff --git a/README.markdown b/README.markdown
index 75a0ec1..275667b 100644
--- a/README.markdown
+++ b/README.markdown
@@ -3,6 +3,8 @@ traverse
 
 Traverse and transform objects by visiting every node on a recursive walk.
 
+[![build status](https://secure.travis-ci.org/substack/js-traverse.png)](http://travis-ci.org/substack/js-traverse)
+
 examples
 ========