diff --git a/.travis.yml b/.travis.yml
index abeba18..1783a32 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,10 +25,14 @@ install:
 
 script:
   - vendor/bin/grumphp run
-  - vendor/bin/phpunit -c "tests/${PHPUNIT_CONFIG:-phpunit}.xml" --testdox --color=always
-  - echo "CMD: vendor/bin/phpunit -c tests/${PHPUNIT_CONFIG:-phpunit}.xml --testdox --color=always"
-  - vendor/bin/infection --test-framework-options="-c 'tests/${PHPUNIT_CONFIG}:-phpunit}.xml'" \
-                       --coverage-xml "tests/test-results"
+  - if [[ -z "$PHPUNIT_CONFIG" ]]; then composer test; else
+      vendor/bin/phpunit -c tests/phpunit.legacy.xml --testdox --color=always
+    ; fi
+  - if [[ -z "$PHPUNIT_CONFIG" ]]; then composer infection; else
+      vendor/bin/infection --coverage=tests/test-results
+        --test-framework-options="-c tests/phpunit.legacy.xml"
+    ; fi
+  - cat /tmp/infection/phpunitConfiguration.initial.infection.xml
   - composer psalm
 
 after_success: bash <(curl -s https://codecov.io/bash)