diff --git a/test/test_file_io.py b/test/test_file_io.py
index bbf2170b..61b5b1c3 100644
--- a/test/test_file_io.py
+++ b/test/test_file_io.py
@@ -15,7 +15,7 @@ def test_folder_io_walk():
     root, folder_ios, file_ios = next(iterator)
     assert folder_ios
     assert root.path == join(root_dir, 'ns2')
-    folder_ios.clear()
+    folder_ios[:] = []  # Not folder_ios.clear() because Python 2
     assert next(iterator, None) is None
 
 
@@ -23,5 +23,5 @@ def test_folder_io_walk2():
     root_dir = get_example_dir('namespace_package')
     iterator = FolderIO(root_dir).walk()
     root, folder_ios, file_ios = next(iterator)
-    folder_ios.clear()
+    folder_ios[:] = []  # Not folder_ios.clear() because Python 2
     assert next(iterator, None) is None