diff --git a/implementations/python/preserves/compare.py b/implementations/python/preserves/compare.py
index 07aed24..87df7ff 100644
--- a/implementations/python/preserves/compare.py
+++ b/implementations/python/preserves/compare.py
@@ -65,8 +65,8 @@ key = cmp_to_key(cmp)
 _key = key
 
 _sorted = sorted
-def sorted(vs, /, *, key=lambda x: x, reverse=False):
-    return _sorted(vs, key=lambda x: _key(key(x)), reverse=reverse)
+def sorted(iterable, *, key=lambda x: x, reverse=False):
+    return _sorted(iterable, key=lambda x: _key(key(x)), reverse=reverse)
 
 def sorted_items(d):
     return sorted(d.items(), key=_item_key)