diff --git a/Classes/Core/Testbase.php b/Classes/Core/Testbase.php
index 725ac014..78dbacb7 100644
--- a/Classes/Core/Testbase.php
+++ b/Classes/Core/Testbase.php
@@ -661,7 +661,16 @@ public function setUpTestDatabase(string $databaseName, string $originalDatabase
         // @todo: This should by now work with using "our" ConnectionPool again, it does now, though.
         $connectionParameters = $GLOBALS['TYPO3_CONF_VARS']['DB']['Connections']['Default'];
         unset($connectionParameters['dbname']);
-        $connection = DriverManager::getConnection($connectionParameters);
+        $configuration = (new Configuration())->setSchemaManagerFactory(GeneralUtility::makeInstance(DefaultSchemaManagerFactory::class));
+        // @todo Remove class exist check if supported minimal TYPO3 version is raised to v13+.
+        if (class_exists(\TYPO3\CMS\Core\Database\Schema\SchemaManager\CoreSchemaManagerFactory::class)) {
+            /** @var SchemaManagerFactory|\TYPO3\CMS\Core\Database\Schema\SchemaManager\CoreSchemaManagerFactory $coreSchemaFactory */
+            $coreSchemaFactory = GeneralUtility::makeInstance(
+                \TYPO3\CMS\Core\Database\Schema\SchemaManager\CoreSchemaManagerFactory::class
+            );
+            $configuration->setSchemaManagerFactory($coreSchemaFactory);
+        }
+        $connection = DriverManager::getConnection($connectionParameters, $connection);
         $schemaManager = $connection->createSchemaManager();
         $platform = $connection->getDatabasePlatform();
         $isSQLite = $platform instanceof DoctrineSQLitePlatform;