diff --git a/tests/src/FunctionalJavascript/LmsXapiTest.php b/tests/src/FunctionalJavascript/LmsXapiTest.php
index 32f5327506152e3d3f4d60ae1ed5cc155cdfaab4..5bdd887c3beb7713bc846d363793255f061ea08d 100644
--- a/tests/src/FunctionalJavascript/LmsXapiTest.php
+++ b/tests/src/FunctionalJavascript/LmsXapiTest.php
@@ -14,6 +14,11 @@ use Drupal\lms\Tests\LmsTestHelperTrait;
  */
 final class LmsXapiTest extends WebDriverTestBase {
 
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
   use LmsTestHelperTrait;
 
   /**