diff --git a/.travis.yml b/.travis.yml
index c6942fb..4ca4544 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,10 @@ notifications:
     on_success: change
     on_failure: change
 
+os:
+  - linux
+  - osx
+
 matrix:
   include:
     - compiler: clang