diff --git a/src/allmydata/test/web/test_common.py b/src/allmydata/test/web/test_common.py
index 6f0d51d5a..84ab5cab2 100644
--- a/src/allmydata/test/web/test_common.py
+++ b/src/allmydata/test/web/test_common.py
@@ -1,6 +1,16 @@
 """
 Tests for ``allmydata.web.common``.
+
+Ported to Python 3.
 """
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+
+from future.utils import PY2
+if PY2:
+    from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, open, pow, round, super, bytes, dict, list, object, range, str, max, min  # noqa: F401
 
 import gc
 
diff --git a/src/allmydata/util/_python3.py b/src/allmydata/util/_python3.py
index 903567983..169c7b413 100644
--- a/src/allmydata/util/_python3.py
+++ b/src/allmydata/util/_python3.py
@@ -171,4 +171,5 @@ PORTED_TEST_MODULES = [
     "allmydata.test.test_upload",
     "allmydata.test.test_uri",
     "allmydata.test.test_util",
+    "allmydata.test.web.test_common",
 ]