diff --git a/.travis.yml b/.travis.yml
index e506712464..de848cc742 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -29,7 +29,7 @@ jobs:
       sudo: required
       os: linux
       language: python
-      env: TEST_SUITE=unit
+      env: [ TEST_SUITE=unit, COVERAGE=true ]
     - python: '2.7'
       sudo: required
       os: linux