diff --git a/source/ProcessManager.Core/Domain/OrchestrationDescription/OrchestrationDescription.cs b/source/ProcessManager.Core/Domain/OrchestrationDescription/OrchestrationDescription.cs
index 9416b17e..35e69b0a 100644
--- a/source/ProcessManager.Core/Domain/OrchestrationDescription/OrchestrationDescription.cs
+++ b/source/ProcessManager.Core/Domain/OrchestrationDescription/OrchestrationDescription.cs
@@ -87,7 +87,7 @@ public string RecurringCronExpression
         {
             if (value != _recurringCronExpression)
             {
-                if (CrontabSchedule.TryParse(value) == null)
+                if (value != string.Empty && CrontabSchedule.TryParse(value) == null)
                     throw new ArgumentOutOfRangeException($"Invalid cron value '{value}'. See https://github.com/atifaziz/NCrontab/wiki/Crontab-Expression for expected format.");
 
                 _recurringCronExpression = value;