diff --git a/docs/ref/request-response.txt b/docs/ref/request-response.txt
index 77298b5bbf..aca839469b 100644
--- a/docs/ref/request-response.txt
+++ b/docs/ref/request-response.txt
@@ -1050,3 +1050,5 @@ otherwise it streams the file out in small chunks.
 
     >>> from django.http import FileResponse
     >>> response = FileResponse(open('myfile.png', 'rb'))
+
+The file will be closed automatically, so don't open it with a context manager.