diff --git a/.travis.yml b/.travis.yml
index 1e1ce30..63f03cd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,10 @@ compiler:
   - gcc
   - clang
 
+os:
+  - linux
+  - osx
+
 addons:
   apt:
     packages: