diff --git a/.travis.yml b/.travis.yml
index 7ce0bf3eda..e523f7ce28 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,6 @@ before_script:
 script:
   - ./scripts/generate-mo --quiet
   - ant phpunit lint
-  - if [[ $TRAVIS_PULL_REQUEST != "false" ]] ; then ./scripts/check-dco origin/master..FETCH_HEAD ; fi
+  - if [[ $TRAVIS_PULL_REQUEST != "false" ]] ; then ./scripts/check-dco origin/$TRAVIS_BRANCH..FETCH_HEAD ; fi
 after_script:
   - php vendor/bin/coveralls -v