diff --git a/apimail/views.py b/apimail/views.py
index cd54b1cb906b17da5aeca84bdeadf134f17cc4ff..396a0aac1a58be3762c583ad59b6e67c12bf5e8c 100644
--- a/apimail/views.py
+++ b/apimail/views.py
@@ -15,10 +15,10 @@ def attachment_file(request, uuid):
     Return an attachment file.
     """
     att = get_object_or_404(AttachmentFile, uuid=uuid)
-    content_type, encoding = mimetypes.guess_type(att.attachment_file.path)
+    content_type, encoding = mimetypes.guess_type(att.file.path)
     content_type = content_type or 'application/octet-stream'
-    response = HttpResponse(att.attachment_file.read(), content_type=content_type)
+    response = HttpResponse(att.file.read(), content_type=content_type)
     response['Content-Disposition'] = (
-        'filename=%s' % att.attachment_file.name.rpartition('/')[2])
+        'filename=%s' % att.file.name.rpartition('/')[2])
     response["Content-Encoding"] = encoding
     return response