diff --git a/tests/lib/TestCase.php b/tests/lib/TestCase.php
index aed919a1e6fe0..8944ad148ce3c 100644
--- a/tests/lib/TestCase.php
+++ b/tests/lib/TestCase.php
@@ -369,7 +369,7 @@ protected static function tearDownAfterClassCleanStrayDataFiles(string $dataDir)
 			'nextcloud.log' => true,
 			'audit.log' => true,
 			'owncloud.db' => true,
-			'.ocdata' => true,
+			'.ncdata' => true,
 			'..' => true,
 			'.' => true,
 		];