diff --git a/packages/hydrojudge/src/hosts/builtin.ts b/packages/hydrojudge/src/hosts/builtin.ts
index 4920b916..72a335aa 100644
--- a/packages/hydrojudge/src/hosts/builtin.ts
+++ b/packages/hydrojudge/src/hosts/builtin.ts
@@ -76,6 +76,10 @@ export async function postInit() {
     await fs.ensureDir(getConfig('tmp_dir'));
     const handle = async (t) => {
         const rdoc = await RecordModel.get(t.domainId, t.rid);
+        if (!rdoc) {
+            logger.debug('Record not found: %o', t);
+            return;
+        }
         (new JudgeTask(session, Object.assign(rdoc, t))).handle().catch(logger.error);
     };
     TaskModel.consume({ type: 'judge' }, handle);
diff --git a/packages/hydrooj/src/handler/judge.ts b/packages/hydrooj/src/handler/judge.ts
index 0cfea84e..7a524066 100644
--- a/packages/hydrooj/src/handler/judge.ts
+++ b/packages/hydrooj/src/handler/judge.ts
@@ -195,14 +195,16 @@ class JudgeConnectionHandler extends ConnectionHandler {
     async newTask() {
         if (this.processing) return;
         let t;
+        let rdoc: RecordDoc;
         while (!t) {
             if (this.closed) return;
-            // eslint-disable-next-line no-await-in-loop
+            /* eslint-disable no-await-in-loop */
             t = await task.getFirst(this.query);
-            // eslint-disable-next-line no-await-in-loop
             if (!t) await sleep(500);
+            else rdoc = await record.get(t.domainId, t.rid);
+            /* eslint-enable no-await-in-loop */
+            if (!rdoc) t = null;
         }
-        let rdoc = await record.get(t.domainId, t.rid);
         this.send({ task: { ...rdoc, ...t } });
         this.processing = t;
         const $set = { status: builtin.STATUS.STATUS_FETCHED };