diff --git a/lib/core/monitor.js b/lib/core/monitor.js
index 2b0296f4a..61d19db06 100644
--- a/lib/core/monitor.js
+++ b/lib/core/monitor.js
@@ -370,7 +370,7 @@ class Monitor extends Searcher {
             }
 
             /* 超过指定时间退出 */
-            if (now_ts - create_time > max_create_time * 86400) {
+            if (create_time && now_ts - create_time > max_create_time * 86400) {
                 log.info("筛选动态", `过时动态(https://t.bilibili.com/${dyid})`)
                 return false
             }