diff --git a/src/allmydata/util/_python3.py b/src/allmydata/util/_python3.py
index a8898cda6..38598fe9b 100644
--- a/src/allmydata/util/_python3.py
+++ b/src/allmydata/util/_python3.py
@@ -120,6 +120,7 @@ PORTED_MODULES = [
     "allmydata.web.check_results",
     "allmydata.web.filenode",
     "allmydata.web.info",
+    "allmydata.web.introweb",
     "allmydata.web.logs",
     "allmydata.webish",
 ]
diff --git a/src/allmydata/web/introweb.py b/src/allmydata/web/introweb.py
index 280d6cc26..621a15a5c 100644
--- a/src/allmydata/web/introweb.py
+++ b/src/allmydata/web/introweb.py
@@ -1,3 +1,14 @@
+"""
+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 time, os
 from pkg_resources import resource_filename