diff --git a/.travis.yml b/.travis.yml
index 0c214b1..9f54fe4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,3 +6,6 @@ addons:
     packages:
       - libgl1-mesa-dev
       - freeglut3-dev
+compiler:
+  - gcc
+  - clang