diff --git a/swift/obj/diskfile.py b/swift/obj/diskfile.py
index 2ba0516c2b..bddde6af84 100644
--- a/swift/obj/diskfile.py
+++ b/swift/obj/diskfile.py
@@ -2324,7 +2324,7 @@ class BaseDiskFile(object):
 
     @classmethod
     def from_hash_dir(cls, mgr, hash_dir_path, device_path, partition, policy):
-        return cls(mgr, device_path, None, partition, _datadir=hash_dir_path,
+        return cls(mgr, device_path, partition, _datadir=hash_dir_path,
                    policy=policy)
 
     def open(self, modernize=False, current_time=None):