diff --git a/py/test/collect.py b/py/test/collect.py
index 231cfc2d1..58245dfa3 100644
--- a/py/test/collect.py
+++ b/py/test/collect.py
@@ -398,7 +398,7 @@ class Directory(FSCollector):
         if l is not None:
             return l 
         l = []
-        for path in self.fspath.listdir(): # listdir() returns sorted order
+        for path in self.fspath.listdir(sort=True): 
             res = self.consider(path, usefilters=True)
             if res is not None:
                 l.append(res)
diff --git a/py/test/testing/test_collect.py b/py/test/testing/test_collect.py
index de20a04a0..00e815f6e 100644
--- a/py/test/testing/test_collect.py
+++ b/py/test/testing/test_collect.py
@@ -87,7 +87,7 @@ class TestCollect(suptest.InlineCollection):
     def test_found_certain_testfiles(self): 
         p1 = self.makepyfile(test_found = "pass", found_test="pass")
         col = py.test.collect.Directory(p1.dirpath(), config=dummyconfig) 
-        items = col.collect()
+        items = col.collect() # Directory collect returns files sorted by name
         assert len(items) == 2
         assert items[1].name == 'test_found.py'
         assert items[0].name == 'found_test.py'