diff --git a/.travis.yml b/.travis.yml
index 66b53f686..6e0edd451 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,6 +20,10 @@ env:
 
 language: cpp
 
+os:
+  - linux
+  - osx
+  
 compiler:
   - gcc
   - clang