diff --git a/back/services/cron.ts b/back/services/cron.ts
index f6d76865..b866a4ba 100644
--- a/back/services/cron.ts
+++ b/back/services/cron.ts
@@ -241,7 +241,7 @@ export default class CronService {
     const [, commandStr, url] = doc.command.split(' ');
     let logPath = this.getKey(commandStr);
     const isQlCommand = doc.command.startsWith('ql ');
-    const key = this.getKey(url) || logPath;
+    const key = (url && this.getKey(url)) || logPath;
     if (isQlCommand) {
       logPath = 'update';
     }