diff --git a/.travis.yml b/.travis.yml
index 919ebd6..2c9a4c2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,10 @@
 sudo: false
 language: c
 
+os:
+  - linux
+  - osx
+
 addons:
   apt:
     packages: