diff --git a/.travis.yml b/.travis.yml
index 1150e9aa13..3197e049de 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -42,12 +42,12 @@ jobs:
     script:
       # The PHPUnit 7.x phar is not compatible with PHP 8 and won't be updated,
       # as PHPUnit 7 is no longer supported, so run the Composer-installed PHPUnit instead.
-      - npm run test:php-composer --verbose -c phpunit.xml.dist
-      - npm run test:php-composer --verbose -c phpunit.xml.dist --group ajax
-      - npm run test:php-composer --verbose -c tests/phpunit/multisite.xml
-      - npm run test:php-composer --verbose -c tests/phpunit/multisite.xml --group ms-files
-      - npm run test:php-composer --verbose -c phpunit.xml.dist --group external-http
-      - npm run test:php-composer --verbose -c phpunit.xml.dist --group restapi-jsclient
+      - npm run test:php-composer -- --verbose -c phpunit.xml.dist
+      - npm run test:php-composer -- --verbose -c phpunit.xml.dist --group ajax
+      - npm run test:php-composer -- --verbose -c tests/phpunit/multisite.xml
+      - npm run test:php-composer -- --verbose -c tests/phpunit/multisite.xml --group ms-files
+      - npm run test:php-composer -- --verbose -c phpunit.xml.dist --group external-http
+      - npm run test:php-composer -- --verbose -c phpunit.xml.dist --group restapi-jsclient
       # __fakegroup__ is excluded to force PHPUnit to ignore the <exclude> settings in phpunit.xml.dist.
       # Xdebug supports PHP 8 only from version 3.0, which is not released yet.
       # Once Xdebug 3.0 is released and included in the Docker image, this should be uncommented again.