diff --git a/src/allmydata/util/fileutil.py b/src/allmydata/util/fileutil.py
index bdabe5aeb..b590b264f 100644
--- a/src/allmydata/util/fileutil.py
+++ b/src/allmydata/util/fileutil.py
@@ -5,7 +5,7 @@ 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, int, list, object, range, str, max, min  # noqa: F401from builtins import range
+    from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, pow, round, super, bytes, dict, int, list, object, range, str, max, min  # noqa: F401from builtins import range
 """
 Futz with files like a pro.
 """