diff --git a/modules/judge.js b/modules/judge.js
index 8509d03..b33d28b 100644
--- a/modules/judge.js
+++ b/modules/judge.js
@@ -75,6 +75,7 @@ app.get('/judge_detail/:id', async (req, res) => {
     let id = parseInt(req.params.id);
     let judge = await JudgeState.fromID(id);
 
+    judge.codeLength = judge.code.length;
     judge.code = await syzoj.utils.highlight(judge.code, syzoj.config.languages[judge.language].highlight);
     if (judge.result.compiler_output) judge.result.compiler_output = syzoj.utils.ansiToHTML(judge.result.compiler_output);
     judge.allowedSeeResult = await judge.isAllowedSeeResultBy(res.locals.user);
@@ -96,6 +97,7 @@ app.get('/judge_detail/:id/ajax', async (req, res) => {
     let id = parseInt(req.params.id);
     let judge = await JudgeState.fromID(id);
 
+    judge.codeLength = judge.code.length;
     judge.code = await syzoj.utils.highlight(judge.code, syzoj.config.languages[judge.language].highlight);
     if (judge.result.compiler_output) judge.result.compiler_output = syzoj.utils.ansiToHTML(judge.result.compiler_output);
     judge.allowedSeeResult = await judge.isAllowedSeeResultBy(res.locals.user);
diff --git a/views/judge_detail_item.ejs b/views/judge_detail_item.ejs
index 447e868..650cb7d 100644
--- a/views/judge_detail_item.ejs
+++ b/views/judge_detail_item.ejs
@@ -25,7 +25,7 @@
           <td class="score score_<%= parseInt(judge.result.score / 10) || 0 %>"><%= judge.result.score %></td>
           <td><%= judge.result.total_time %> ms</td>
           <td><%= judge.result.max_memory %> K</td>
-          <td><%= syzoj.config.languages[judge.language].show %> / <%= syzoj.utils.formatSize(judge.code.length) %></td>
+          <td><%= syzoj.config.languages[judge.language].show %> / <%= syzoj.utils.formatSize(judge.codeLength) %></td>
         <% } else { %>
           <td>隐藏</td>
           <td>隐藏</td>