diff --git a/tests/test_dir_util.py b/tests/test_dir_util.py
index <HASH>..<HASH> 100644
--- a/tests/test_dir_util.py
+++ b/tests/test_dir_util.py
@@ -128,7 +128,7 @@ class DirUtilTestCase(support.TempdirManager, unittest.TestCase):
         An exception in listdir should raise a DistutilsFileError
         """
         with self.assertRaises(errors.DistutilsFileError):
-            dir_util.copy_tree('src', None)
+            dir_util.copy_tree(self.target, None)
 
 
 def test_suite():
#<I>: Provide an actual directory during test invocation.