diff --git a/tests/codeigniter/helpers/directory_helper_test.php b/tests/codeigniter/helpers/directory_helper_test.php
index 66e66d2..de72dee 100644
--- a/tests/codeigniter/helpers/directory_helper_test.php
+++ b/tests/codeigniter/helpers/directory_helper_test.php
@@ -29,7 +29,7 @@
 		vfsStream::create($structure, $this->_test_dir);
 
 		// is_dir(), opendir(), etc. seem to fail on Windows + vfsStream when there are trailing backslashes in directory names
-		if (DIRECTORY_SEPARATOR === '\\' && ! is_dir(vfsStream::url('testDir').'\\'))
+		if ( ! is_dir(vfsStream::url('testDir').DIRECTORY_SEPARATOR))
 		{
 			$this->markTestSkipped();
 			return;