diff --git a/helios/views.py b/helios/views.py
index d646dcc42aa3178ef0f3fab56efb93167d2fc12d..3353701b4647744a6c9e6a94a11598dc6fe888f3 100644
--- a/helios/views.py
+++ b/helios/views.py
@@ -821,7 +821,7 @@ def one_election_audited_ballots(request, election):
   
   if request.GET.has_key('vote_hash'):
     b = AuditedBallot.get(election, request.GET['vote_hash'])
-    return HttpResponse(b.raw_vote, mimetype="text/plain")
+    return HttpResponse(b.raw_vote, content_type="text/plain")
     
   after = request.GET.get('after', None)
   offset= int(request.GET.get('offset', 0))