diff --git a/.travis.yml b/.travis.yml
index 307945bf..fd590bea 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: python
 
 python:
+  - 2.5
   - 2.6
   - 2.7
   - pypy
diff --git a/flask/ctx.py b/flask/ctx.py
index 6b271687..0340486b 100644
--- a/flask/ctx.py
+++ b/flask/ctx.py
@@ -9,6 +9,8 @@
     :license: BSD, see LICENSE for more details.
 """
 
+from __future__ import with_statement
+
 import sys
 from functools import update_wrapper