diff --git a/.travis.yml b/.travis.yml
index 6c2902a8..658f0b12 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,10 @@
 
 language: c
 
+os:
+- linux
+- osx
+
 #   Build required projects first
 before_script: