diff --git a/app/views/bids/_homework_list.html.erb b/app/views/bids/_homework_list.html.erb
index 3ed809fe0..0326f218c 100644
--- a/app/views/bids/_homework_list.html.erb
+++ b/app/views/bids/_homework_list.html.erb
@@ -78,7 +78,7 @@
                         <% end %>
                     </td>
                     <td rowspan="4" style="text-align: center;vertical-align: middle;width: 30px">
-                      <% if Time.parse(@bid.deadline.to_s) < Time.parse(homework.created_at.to_s) %>
+                      <% if Time.parse(@bid.deadline.to_s).strftime("%Y-%m-%d") < Time.parse(homework.created_at.to_s).strftime("%Y-%m-%d") %>
                           <span class="required">迟交</span>
                       <% end %>
                     </td>