diff --git a/.travis.yml b/.travis.yml
index 3e45c05a1..1a31a2af4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,4 +12,5 @@ install:
   - if [ "$TRAVIS_PYTHON_VERSION" == "3.2" ]; then travis_retry pip install coverage==3.7.1; fi
   - if [ "$TRAVIS_PYTHON_VERSION" != "3.2" ]; then travis_retry pip install coverage; fi
   - "pip install pytest pytest-cov"
-script: py.test --doctest-modules --cov ./
\ No newline at end of file
+script: py.test --doctest-modules --cov ./
+os: osx