diff --git a/tests/storage/servers/davical/__init__.py b/tests/storage/servers/davical/__init__.py
index 7cf6c6c..d99f50d 100644
--- a/tests/storage/servers/davical/__init__.py
+++ b/tests/storage/servers/davical/__init__.py
@@ -39,11 +39,8 @@ class ServerMixin:
                 )
                 s = self.storage_class(**args)
                 if not list(s.list()):
-                    request.addfinalizer(
-                        # Ignoreng flake8-bugbear false positive.
-                        # See: https://github.com/PyCQA/flake8-bugbear/issues/269
-                        lambda: s.session.request("DELETE", "")  # noqa: B023
-                    )
+                    # See: https://stackoverflow.com/a/33984811
+                    request.addfinalizer(lambda x=s: x.session.request("DELETE", ""))
                     return args
 
             raise RuntimeError("Failed to find free collection.")