diff --git a/app/views/tidings/_tiding.json.jbuilder b/app/views/tidings/_tiding.json.jbuilder
index 4a392edfd..c00670433 100644
--- a/app/views/tidings/_tiding.json.jbuilder
+++ b/app/views/tidings/_tiding.json.jbuilder
@@ -4,6 +4,7 @@ json.content tiding.content
 
 json.identifier tiding.identifier
 json.auth_type tiding.container_type == 'ApplyUserAuthentication' ? tiding.container.auth_type : nil
+json.homework_type tiding.container_type == 'HomeworkCommon' ? tiding.container.homework_type : nil
 
 json.time tiding.how_long_time
 json.new_tiding tiding.unread?(@onclick_time)