diff --git a/.travis.yml b/.travis.yml
index 70ec331..079070d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,11 @@
 # Enable C support
 language: c
+
+# OS selection
+os:
+  - linux
+  - osx
+
 # Compiler selection
 compiler:
   - clang