diff --git a/src/allmydata/test/test_crawler.py b/src/allmydata/test/test_crawler.py
index 38bc8dcc6..1ed217251 100644
--- a/src/allmydata/test/test_crawler.py
+++ b/src/allmydata/test/test_crawler.py
@@ -11,7 +11,9 @@ from __future__ import unicode_literals
 
 from future.utils import PY2, PY3
 if PY2:
-    # Don't use future bytes, since it breaks tests.
+    # Don't use future bytes, since it breaks tests. No further works is
+    # needed, once we're only on Python 3 we'll be deleting this future imports
+    # anyway, and tests pass just fine on Python 3.
     from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, open, pow, round, super, dict, list, object, range, str, max, min  # noqa: F401
 
 import time