diff --git a/conda_lock/virtual_package.py b/conda_lock/virtual_package.py
index b169a0c8..1c47832e 100644
--- a/conda_lock/virtual_package.py
+++ b/conda_lock/virtual_package.py
@@ -49,7 +49,7 @@ def to_repodata_entry(self) -> Tuple[str, Dict[str, Any]]:
 class FakeRepoData(BaseModel):
     base_path: pathlib.Path
     packages_by_subdir: DefaultDict[FakePackage, Set[str]] = Field(
-        default_factory=lambda: defaultdict(set)  # type: ignore[arg-type]
+        default_factory=lambda: defaultdict(set)  # type: ignore[arg-type,unused-ignore]
     )
     all_subdirs: Set[str] = {
         "noarch",