diff --git a/py/green/conftest.py b/py/green/conftest.py
index 361296acf..1bbd7d3d3 100644
--- a/py/green/conftest.py
+++ b/py/green/conftest.py
@@ -1,4 +1,8 @@
 import py, os
 
-if os.name == 'nt':
-    py.test.skip("Cannot test green layer on windows")
+class Directory(py.test.collect.Directory):
+    def run(self): 
+        if os.name == 'nt':
+            py.test.skip("Cannot test green layer on windows")
+        else:
+            return super(Directory, self).run()