diff --git a/ext/standard/tests/file/bug36365.phpt b/ext/standard/tests/file/bug36365.phpt
index be1a6c516555..c3aeb8045d6e 100644
--- a/ext/standard/tests/file/bug36365.phpt
+++ b/ext/standard/tests/file/bug36365.phpt
@@ -2,6 +2,7 @@
 Bug #36365 (scandir duplicates file name at every 65535th file)
 --SKIPIF--
 <?php
+if (PHP_OS_FAMILY !== 'Windows') die('skip Windows only');
 if (getenv("SKIP_SLOW_TESTS")) die('skip slow test');
 ?>
 --FILE--