diff --git a/.travis.yml b/.travis.yml
index 00de3b3e..17e83e7f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,3 +2,6 @@ language: node_js
 cache: npm
 script: npm run build
 after_success: npm run sizereport
+os:
+  - linux
+  - windows