diff --git a/tox.ini b/tox.ini
index 20f05b4..93779ae 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,3 +22,4 @@ env =
     GIT_COMMITTER_NAME=test
     GIT_AUTHOR_EMAIL=test@example.com
     GIT_COMMITTER_EMAIL=test@example.com
+    GIT_CONFIG_GLOBAL=/dev/null