diff --git a/.travis.yml b/.travis.yml
index 62e51a1..31902b2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@ install:
   - composer install
 
 before_script:
-  - [[ $HHVM && ${HHVM-x} ]] && curl -sSf -o ~/.phpenv/versions/hhvm/bin/phpunit https://phar.phpunit.de/phpunit-5.7.phar
+  - if [[ $HHVM && ${HHVM-x} ]]; then curl -sSf -o ~/.phpenv/versions/hhvm/bin/phpunit https://phar.phpunit.de/phpunit-5.7.phar; fi
   - mkdir -p build/logs
   - cd tests