diff --git a/tests/test_config.py b/tests/test_config.py
index 589ba456ca4d01b31926ead153fe57985efe80a0..62aea03fb5ad47d3891eafbd811cb42e21de0dfd 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -39,6 +39,5 @@ def test_repository_from_environment():
         assert config.repository_path().parts == ('/', 'usr', 'local')
 
 def test_no_repository():
-    with update_environ(CONSERVANCY_REPOSITORY=None):
-        config = config_mod.Config()
-        assert config.repository_path() is None
+    config = config_mod.Config()
+    assert config.repository_path() is None