diff --git a/.travis.yml b/.travis.yml
index eeefefa..b52758e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,10 @@ go:
   - 1.6.2
   - tip
 
+os:
+  - linux
+  - osx
+
 matrix:
   allow_failures:
     - go: tip