diff --git a/.travis.yml b/.travis.yml
index a2d105c0..307e4203 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,6 +28,10 @@ matrix:
 
 sudo: false
 
+script:
+  - elixir --version | grep -q '^Elixir 1\.5' || mix format --check-formatted
+  - mix test
+
 after_script:
   - mix deps.get --only docs
   - MIX_ENV=docs mix inch.report