diff --git a/app/views/shixuns/add_collaborators.json.jbuilder b/app/views/shixuns/add_collaborators.json.jbuilder
index 3fc341b69..1264caafa 100644
--- a/app/views/shixuns/add_collaborators.json.jbuilder
+++ b/app/views/shixuns/add_collaborators.json.jbuilder
@@ -3,6 +3,6 @@ json.user_count @users_count
 json.array! @users do |user|
   json.user_id user.id
   json.identify user.identity
-  json.nickname user.real_name
+  json.nickname user.lastname
   json.school_name user.school_name
 end