diff --git a/module/VuFind/tests/unit-tests/src/VuFindTest/ILS/Driver/FolioTest.php b/module/VuFind/tests/unit-tests/src/VuFindTest/ILS/Driver/FolioTest.php
index be9c335857c..1b794f00dcd 100644
--- a/module/VuFind/tests/unit-tests/src/VuFindTest/ILS/Driver/FolioTest.php
+++ b/module/VuFind/tests/unit-tests/src/VuFindTest/ILS/Driver/FolioTest.php
@@ -58,6 +58,7 @@ class FolioTest extends \PHPUnit\Framework\TestCase
             'tenant' => 'config_tenant',
             'username' => 'config_username',
             'password' => 'config_password',
+            'legacy_authentication' => false,
         ],
     ];