diff --git a/benedict/utils/dict_util.py b/benedict/utils/dict_util.py
index 40dd0eb..a1c5290 100644
--- a/benedict/utils/dict_util.py
+++ b/benedict/utils/dict_util.py
@@ -206,7 +206,6 @@ def traverse(d, callback):
 def unflatten(d, separator='_'):
     new_dict = d.copy()
     new_dict.clear()
-    new_dict_cursor = new_dict
     keys = list(d.keys())
     for key in keys:
         value = d.get(key, None)