diff --git a/app/views/shixuns/_statistics_student_list.html.erb b/app/views/shixuns/_statistics_student_list.html.erb
index 139a9b83e..ec30578db 100644
--- a/app/views/shixuns/_statistics_student_list.html.erb
+++ b/app/views/shixuns/_statistics_student_list.html.erb
@@ -33,10 +33,10 @@
                 </td>
                 <td>
                   <span class=" mr20">
-                    <% if statistics.total_score.to_i == 0 %>
+                    <% if statistics.total_score == 0 || statistics.total_score.nil? %>
                         --
                     <% else %>
-                      <span style="color:#29bd8b;font-weight:bold;" class="font-14"> + <%= statistics.total_score.to_i %></span> 经验值
+                      <span style="color:#29bd8b;font-weight:bold;" class="font-14">+ <%= statistics.total_score.to_i %></span> 经验值
                     <% end %>
                   </span>
                 </td>