diff --git a/app/models/discuss.rb b/app/models/discuss.rb
index e8fee2ed1..652ffea37 100644
--- a/app/models/discuss.rb
+++ b/app/models/discuss.rb
@@ -54,9 +54,14 @@ class Discuss < ApplicationRecord
   def send_tiding
     base_attrs = {
       trigger_user_id: user_id, parent_container_id: challenge_id, parent_container_type: 'Challenge',
-      belong_container_id: dis_id, belong_container_type: 'Shixun', viewed: 0, tiding_type: 'Comment'
+      belong_container_id: dis_id, belong_container_type: dis_type, viewed: 0, tiding_type: 'Comment'
     }
-    user_id = has_parent? ? parent.user_id : Challenge.find(challenge_id).user_id
+    user_id =
+        if dis_type == 'Shixun'
+          has_parent? ? parent.user_id : Challenge.find(challenge_id).user_id
+        elsif dis_type == 'Hack'
+          has_parent? ? parent.user_id : Hack.find(dis_id).user_id
+        end
     tidings.create!(base_attrs.merge(user_id: user_id))
   end
 end