diff --git a/.travis.yml b/.travis.yml
index 0250ab7c..c9ffb249 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,7 @@
 language: rust
+os:
+- osx
+- linux
 env:
   global:
   - secure: J4i75AV4KMrU/UQrLIzzIh35Xix40Ki0uWjm8j05oxlXVl5aPU2zB30AemDne2QXYzkN4kRG/iRnNORE/8D0lF7YipQNSNxgfiBVoOEfj/NSogvI2BftYX9vlLZJUvt+s/nbE3xa/Pyge1IPv7itDYGO7SMe8RTSqitgqyfE2Eg=