diff --git a/apps/files_external/tests/irods.php b/apps/files_external/tests/irods.php
index 614e5bc7c3a..8b00ae0420d 100644
--- a/apps/files_external/tests/irods.php
+++ b/apps/files_external/tests/irods.php
@@ -10,6 +10,8 @@ namespace Test\Files\Storage;
 
 class iRODS extends Storage {
 
+	protected $backupGlobals = FALSE;
+
 	private $config;
 
 	public function setUp() {