diff --git a/kallithea/tests/conftest.py b/kallithea/tests/conftest.py
--- a/kallithea/tests/conftest.py
+++ b/kallithea/tests/conftest.py
@@ -25,6 +25,10 @@ def pytest_configure():
     if not kallithea.is_windows:
         time.tzset() # only available on Unix
 
+    os.environ['HOME'] = TESTS_TMP_PATH
+    os.environ['XDG_CONFIG_HOME'] = TESTS_TMP_PATH + '/.config'
+    os.environ['GIT_CONFIG_NOSYSTEM'] = '1'
+
     # Disable INFO logging of test database creation, restore with NOTSET
     logging.disable(logging.INFO)