diff --git a/tox.ini b/tox.ini
index c41c8b8b2..78a423315 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,6 @@ envlist = py26,py27,py33,pep8
 setenv = VIRTUAL_ENV={envdir}
          LANG=en_US.UTF-8
          LANGUAGE=en_US:en
-         LC_ALL=C
          OS_STDOUT_NOCAPTURE=False
          OS_STDERR_NOCAPTURE=False