diff --git a/rust2rpm/metadata.py b/rust2rpm/metadata.py
index 4a0b68c..306dd53 100644
--- a/rust2rpm/metadata.py
+++ b/rust2rpm/metadata.py
@@ -373,9 +373,7 @@ class Metadata:
     def from_file(cls, path):
         instances = []
         members = Metadata.members(path)
-        if not members:
-            members = [path]
-        for member in members:
+        for member in (members or [path]):
             instance = cls.from_json(Metadata.manifest(member))
             instance._path = member
             instances.append(instance)