diff --git a/setuptools/dist.py b/setuptools/dist.py
index c75aaabe99..e5a7b8ed9e 100644
--- a/setuptools/dist.py
+++ b/setuptools/dist.py
@@ -334,6 +334,7 @@ def invalid_unless_false(dist, attr, value):
     if not value:
         DistDeprecationWarning.emit(f"{attr} is ignored.")
         # TODO: should there be a `due_date` here?
+        return
     raise DistutilsSetupError(f"{attr} is invalid.")