diff --git a/.travis.yml b/.travis.yml
index 31902b2..6594d19 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,8 @@ install:
   - composer install
 
 before_script:
-  - if [[ $HHVM && ${HHVM-x} ]]; then curl -sSf -o ~/.phpenv/versions/hhvm/bin/phpunit https://phar.phpunit.de/phpunit-5.7.phar; fi
+  - if [[ $HHVM == true ]]; then curl -sSf -o ~/.phpenv/versions/hhvm/bin/phpunit https://phar.phpunit.de/phpunit-5.7.phar; fi
+  - phpunit --version
   - mkdir -p build/logs
   - cd tests