1 files changed, 2 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 3613392e5..83de82e2e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,6 +25,8 @@ deps =
 passenv =
     MAILMAN_*
     PYTHON*
+    LANG*
+    LC_*
 setenv =
     cov: COVERAGE_PROCESS_START={[coverage]rcfile}
     cov: COVERAGE_OPTIONS="-p"