diff --git a/tests/conftest.py b/tests/conftest.py
index 918db65..4eb9c4a 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -14,6 +14,7 @@ from copanier.models import Delivery, Person, Product
 def pytest_configure(config):
     os.environ["COPANIER_DATA_ROOT"] = "tmp/db"
     os.environ["COPANIER_SEND_EMAILS"] = ""
+    os.environ["COPANIER_STAFF"] = ""
     kconfig.init()
     assert str(kconfig.DATA_ROOT) == "tmp/db"