diff --git a/packages/hydrooj/src/handler/record.ts b/packages/hydrooj/src/handler/record.ts
index e34d63b5e..6a399224f 100644
--- a/packages/hydrooj/src/handler/record.ts
+++ b/packages/hydrooj/src/handler/record.ts
@@ -170,7 +170,7 @@ class RecordDetailHandler extends ContestDetailBaseHandler {
             if (this.tdoc.allowViewCode && contest.isDone(this.tdoc)) {
                 canViewCode ||= tsdoc?.attend;
             }
-            if (!tsdoc.attend && !problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
+            if (!tsdoc?.attend && !problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
         } else if (!problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
         if (!canViewCode) {
             rdoc.code = '';