diff --git a/ckan/controllers/api.py b/ckan/controllers/api.py
index 23aec691ced..0db9b5112ea 100644
--- a/ckan/controllers/api.py
+++ b/ckan/controllers/api.py
@@ -193,6 +193,10 @@ def action(self, logic_function, ver=None):
         # if callback is specified we do not want to send that to the search
         if 'callback' in request_data:
             del request_data['callback']
+            c.user = None
+            c.userobj = None
+            context['user'] = None
+            context['auth_user_obj'] = None
         try:
             result = function(context, request_data)
             return_dict['success'] = True