diff --git a/flask/helpers.py b/flask/helpers.py
index 582a2b87..2c8e93fa 100644
--- a/flask/helpers.py
+++ b/flask/helpers.py
@@ -23,7 +23,7 @@ from werkzeug.routing import BuildError
 from functools import update_wrapper
 
 from werkzeug.urls import url_quote
-from werkzeug.datastructures import Headers, Range
+from werkzeug.datastructures import Headers
 from werkzeug.exceptions import BadRequest, NotFound, RequestedRangeNotSatisfiable
 
 from werkzeug.wsgi import wrap_file