diff --git a/app/helpers/student_work_helper.rb b/app/helpers/student_work_helper.rb
index df5c872f8..4e11e153e 100644
--- a/app/helpers/student_work_helper.rb
+++ b/app/helpers/student_work_helper.rb
@@ -130,7 +130,7 @@ module StudentWorkHelper
   def revise_attachment_status homework, attach
     date = Time.parse(format_time(attach.created_on.to_s)).strftime("%Y-%m-%d")
     status = ""
-    if homework.homework_detail_manual && ((homework.anonymous_comment == 0 &&homework.homework_detail_manual.evaluation_start.to_s <= date) || (homework.anonymous_comment == 1 && homework.end_time < date))
+    if homework.homework_detail_manual && ((homework.anonymous_comment == 0 &&homework.homework_detail_manual.evaluation_start.to_s <= date) || (homework.anonymous_comment == 1 && homework.end_time.to_s < date))
       status = "此时其他同学作品已公开"
     else
       status = "此时其他同学作品尚未公开"