diff --git a/ext/standard/tests/file/fnmatch_basic.phpt b/ext/standard/tests/file/fnmatch_basic.phpt
index 6c8d0ca8a52..debec49cc12 100644
--- a/ext/standard/tests/file/fnmatch_basic.phpt
+++ b/ext/standard/tests/file/fnmatch_basic.phpt
@@ -2,9 +2,9 @@
 Test fnmatch() function: Basic functionality
 --SKIPIF--
 <?php
-if (substr(PHP_OS, 0, 3) == 'WIN') {
-    die('skip no fnmatch() on Windows');
-}
+if( (stristr(PHP_OS, "Mac")) || (stristr(PHP_OS, "Win")) )
+  die("skip do not run on MacOS/Windows");
+?>
 --FILE--
 <?php
 /* Prototype: bool fnmatch ( string $pattern, string $string [, int $flags] )
diff --git a/ext/standard/tests/file/fnmatch_error.phpt b/ext/standard/tests/file/fnmatch_error.phpt
index 329e3475bea..4da8ab553a5 100644
--- a/ext/standard/tests/file/fnmatch_error.phpt
+++ b/ext/standard/tests/file/fnmatch_error.phpt
@@ -2,9 +2,9 @@
 Test fnmatch() function: Error conditions
 --SKIPIF--
 <?php
-if (substr(PHP_OS, 0, 3) == 'WIN') {
-    die('skip no fnmatch() on Windows');
-}
+if( (stristr(PHP_OS, "Mac")) || (stristr(PHP_OS, "Win")) )
+  die("skip do not run on MacOS/Windows");
+?>
 --FILE--
 <?php
 /* Prototype: bool fnmatch ( string $pattern, string $string [, int $flags] )
diff --git a/ext/standard/tests/file/fnmatch_variation.phpt b/ext/standard/tests/file/fnmatch_variation.phpt
index bf6d40baae4..ee42455328a 100644
--- a/ext/standard/tests/file/fnmatch_variation.phpt
+++ b/ext/standard/tests/file/fnmatch_variation.phpt
@@ -2,9 +2,9 @@
 Test fnmatch() function: Variations
 --SKIPIF--
 <?php
-if (substr(PHP_OS, 0, 3) == 'WIN') {
-    die('skip no fnmatch() on Windows');
-}
+if( (stristr(PHP_OS, "Mac")) || (stristr(PHP_OS, "Win")) )
+  die("skip do not run on MacOS/Windows");
+?>
 --FILE--
 <?php
 /* Prototype: bool fnmatch ( string $pattern, string $string [, int $flags] )