diff --git a/.travis.yml b/.travis.yml
index 43f0e55a..7f6c11f1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,7 @@ before_install:
 install: true
 
 script:
+  - env | grep TRAVIS_
   - make .govet
   - make .golint
   - echo "${TRAVIS_COMMIT_RANGE} -> ${TRAVIS_COMMIT_RANGE/.../..} (travis-ci/travis-ci#4596)"