diff --git a/.travis.yml b/.travis.yml
index 9b1ed7c10b..bf60ba849b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: node_js
 node_js:
   - "6"
+os:
+- linux
+- osx
 
 script:
   - npm run test -- --installer=npm