diff --git a/ajax_select/views.py b/ajax_select/views.py
index d23d2e8..8280d0a 100644
--- a/ajax_select/views.py
+++ b/ajax_select/views.py
@@ -40,7 +40,7 @@ def ajax_lookup(request,channel):
         } for item in instances
     ])
 
-    return HttpResponse(results, mimetype='application/javascript')
+    return HttpResponse(results, content_type='application/javascript')
 
 
 def add_popup(request,app_label,model):