diff --git a/.travis.yml b/.travis.yml
index 1f5b82c811e62e6c7f93ef3d963fe70589d0614c..a79a5126b19412ef873c8973c2c648981be3e8b7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -56,6 +56,7 @@ jobs:
     - os: osx
       language: generic
       env: [ TEST_SUITE=unit, PYTHON_VERSION=2.7, COVERAGE=true ]
+      if: type != pull_request
 # mpich (AutotoolsPackage)
     - stage: 'build tests'
       python: '2.7'