diff --git a/web/template/syzoj/problem.php b/web/template/syzoj/problem.php
index 89bb7c7..214e857 100644
--- a/web/template/syzoj/problem.php
+++ b/web/template/syzoj/problem.php
@@ -122,11 +122,11 @@ if ($pr_flag) {
     function trans_md($str)
     {
       return
-        //  bbcode_to_html(
         "<span class='md'>" .
-        htmlentities($str, ENT_QUOTES, 'UTF-8')
+        bbcode_to_html(
+          htmlentities($str, ENT_QUOTES, 'UTF-8')
+        )
         . "</span>"
-        // )
       ;
     }
     ?>