diff --git a/tox.ini b/tox.ini
index fb68864..5915acf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,9 +4,6 @@ envlist = py26,py27,py32,py33,pep8
 [testenv]
 setenv =
     VIRTUAL_ENV={envdir}
-    LANG=en_US.UTF-8
-    LANGUAGE=en_US:en
-    LC_ALL=C
 
 commands =
   python -m git_review.tests.prepare