diff --git a/.travis.yml b/.travis.yml
index 5960012ad..13b5a6843 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,8 @@
 language: node_js
+os:
+  - linux
+  - osx
+  - windows
 node_js:
   - "6"
   - "10"