diff --git a/.travis.yml b/.travis.yml
index 921eb4d9..0be00212 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,7 +39,7 @@ before_script:
 
 script:
   - mkdir /tmp/xdebug-test
-  - php ./vendor/bin/phpunit --debug --exclude-group=ssl --coverage-text --coverage-clover ./build/logs/clover.xml
+  - php ./vendor/bin/phpunit --debug --group=by --coverage-text --coverage-clover ./build/logs/clover.xml
   - ./vendor/bin/php-cs-fixer fix -v --diff --dry-run
   - ./vendor/bin/docheader check src/ tests/
   - find /tmp/xdebug-test/* | xargs cat