diff --git a/src/Infrastructure/BotSharp.Abstraction/Crontab/Settings/CrontabSettings.cs b/src/Infrastructure/BotSharp.Abstraction/Crontab/Settings/CrontabSettings.cs
index 53e90959..31326687 100644
--- a/src/Infrastructure/BotSharp.Abstraction/Crontab/Settings/CrontabSettings.cs
+++ b/src/Infrastructure/BotSharp.Abstraction/Crontab/Settings/CrontabSettings.cs
@@ -4,7 +4,7 @@ public class CrontabSettings
 {
     public CrontabBaseSetting EventSubscriber { get; set; } = new();
     public CrontabBaseSetting Watcher { get; set; } = new();
-    public string LockName { get; set; }
+    public string LockName { get; set; } = "default";
 }
 
 public class CrontabBaseSetting
diff --git a/src/Infrastructure/BotSharp.Core.Crontab/Services/CrontabWatcher.cs b/src/Infrastructure/BotSharp.Core.Crontab/Services/CrontabWatcher.cs
index 9497ddd4..dce21fa6 100644
--- a/src/Infrastructure/BotSharp.Core.Crontab/Services/CrontabWatcher.cs
+++ b/src/Infrastructure/BotSharp.Core.Crontab/Services/CrontabWatcher.cs
@@ -18,7 +18,7 @@ public class CrontabWatcher : BackgroundService
         _logger = logger;
         _services = services;
         _cronSettings = cronSettings;
-        DIST_KEY = $"CrontabWatcher:locker-{_cronSettings.LockName ?? "default"}";
+        DIST_KEY = $"CrontabWatcher:locker-{_cronSettings.LockName}";
     }
 
     protected override async Task ExecuteAsync(CancellationToken stoppingToken)