diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
index e5cd962..67850c3 100644
--- a/Lib/test/test_ssl.py
+++ b/Lib/test/test_ssl.py
@@ -391,7 +391,7 @@ def test_random(self):
         ssl.RAND_add(b"this is a random bytes object", 75.0)
         ssl.RAND_add(bytearray(b"this is a random bytearray object"), 75.0)
 
-    @unittest.skipUnless(os.name == 'posix', 'requires posix')
+    @unittest.skipUnless(hasattr(os, 'fork'), 'need os.fork')
     def test_random_fork(self):
         status = ssl.RAND_status()
         if not status:
diff --git a/Lib/test/test_uuid.py b/Lib/test/test_uuid.py
old mode 100644
new mode 100755
index 718113d..d6a8333
--- a/Lib/test/test_uuid.py
+++ b/Lib/test/test_uuid.py
@@ -639,7 +639,7 @@ def test_uuid5(self):
             equal(u, self.uuid.UUID(v))
             equal(str(u), v)
 
-    @unittest.skipUnless(os.name == 'posix', 'requires Posix')
+    @unittest.skipUnless(hasattr(os, 'fork'), 'need os.fork')
     def testIssue8621(self):
         # On at least some versions of OSX self.uuid.uuid4 generates
         # the same sequence of UUIDs in the parent and any