diff --git a/rest_framework/response.py b/rest_framework/response.py
old mode 100644
new mode 100755
index 0a7d313f4..ba48648c9
--- a/rest_framework/response.py
+++ b/rest_framework/response.py
@@ -91,4 +91,5 @@ class Response(SimpleTemplateResponse):
         for key in ('accepted_renderer', 'renderer_context', 'data'):
             if key in state:
                 del state[key]
+        state['_closable_objects'] = []
         return state