diff --git a/web/modules/contrib/migrate_file/tests/src/Functional/LoadTest.php b/web/modules/contrib/migrate_file/tests/src/Functional/LoadTest.php
index 415d390677..8905abc54b 100644
--- a/web/modules/contrib/migrate_file/tests/src/Functional/LoadTest.php
+++ b/web/modules/contrib/migrate_file/tests/src/Functional/LoadTest.php
@@ -12,6 +12,11 @@
  */
 class LoadTest extends BrowserTestBase {
 
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
   /**
    * Modules to enable.
    *