diff --git a/app/notify_client/api_client.py b/app/notify_client/api_client.py
index 2ec75b79f..5cb425316 100644
--- a/app/notify_client/api_client.py
+++ b/app/notify_client/api_client.py
@@ -68,7 +68,7 @@ class NotificationsAdminAPIClient(NotificationsAPIClient):
             "users": users
         }
         endpoint = "/service/{0}".format(service_id)
-        return self.put(endpoint, update_dict)
+        return self.put(endpoint, data)
 
     def create_service_template(self, name, type_, content, service_id):
         """