diff --git a/ext/posix/tests/posix_getgrnam_basic.phpt b/ext/posix/tests/posix_getgrnam_basic.phpt
index 8a26c4a19e4..2408c62850c 100644
--- a/ext/posix/tests/posix_getgrnam_basic.phpt
+++ b/ext/posix/tests/posix_getgrnam_basic.phpt
@@ -3,6 +3,7 @@ Test posix_getgrnam() function : basic functionality
 --SKIPIF--
 <?php
 	if (!extension_loaded('posix')) die('skip - POSIX extension not loaded');
+	if (!posix_getgroups()) die('skip - groups unavailable (ci)');
 ?>
 --FILE--
 <?php