diff --git a/flask/helpers.py b/flask/helpers.py
index 0db7eb44..2a841236 100644
--- a/flask/helpers.py
+++ b/flask/helpers.py
@@ -9,6 +9,8 @@
     :license: BSD, see LICENSE for more details.
 """
 
+from __future__ import with_statement
+
 import os
 import sys
 import posixpath