diff --git a/src/pushsource/_impl/model/erratum_fixup.py b/src/pushsource/_impl/model/erratum_fixup.py
index bc84deed..80d028a6 100644
--- a/src/pushsource/_impl/model/erratum_fixup.py
+++ b/src/pushsource/_impl/model/erratum_fixup.py
@@ -53,6 +53,8 @@ def __init__(self, delegate, attrs_old_to_new):
             # (we do this dynamically to cope with differences between ancient and newer
             # versions of attrs library)
             attr_kwargs = {"name": new_name}
+            if hasattr(old_attr, "alias"):
+                attr_kwargs["alias"] = new_name
             for argname in [
                 "default",
                 "validator",