diff --git a/template/src/oj/submission/problem_my_submissions_list.html b/template/src/oj/submission/problem_my_submissions_list.html
index 5931601d..2f75e82f 100644
--- a/template/src/oj/submission/problem_my_submissions_list.html
+++ b/template/src/oj/submission/problem_my_submissions_list.html
@@ -25,7 +25,7 @@
         {% if submissions %}
         <table class="table table-bordered">
             <thead>
-            <tr class="" success>
+            <tr class="success">
                 <th>#</th>
                 <th>提交时间</th>
                 <th>语言</th>
@@ -44,7 +44,7 @@
                         {{ item.language|translate_language }}
                     </td>
                     <td>
-                        {% if item.accepted_answer_time %}
+                        {% if item.accepted_answer_time != None %}
                             {{ item.accepted_answer_time }}ms
                         {% else %}
                             --