diff --git a/BMA.EHR.Leave.Service/Controllers/LeaveController.cs b/BMA.EHR.Leave.Service/Controllers/LeaveController.cs
index c635ba21..e0507f27 100644
--- a/BMA.EHR.Leave.Service/Controllers/LeaveController.cs
+++ b/BMA.EHR.Leave.Service/Controllers/LeaveController.cs
@@ -171,7 +171,7 @@ namespace BMA.EHR.Leave.Service.Controllers
                 var inserted = new DutyTime
                 {
                     Id = Guid.NewGuid(),
-                    Description = data.Description,
+                    Description = data.Description ?? "",
                     StartTimeMorning = data.StartTimeMorning,
                     EndTimeMorning = data.EndTimeMorning,
                     StartTimeAfternoon = data.StartTimeAfternoon,
diff --git a/BMA.EHR.Leave.Service/DTOs/DutyTime/CreateDutyTimeDto.cs b/BMA.EHR.Leave.Service/DTOs/DutyTime/CreateDutyTimeDto.cs
index 5cc376c0..c5b7b803 100644
--- a/BMA.EHR.Leave.Service/DTOs/DutyTime/CreateDutyTimeDto.cs
+++ b/BMA.EHR.Leave.Service/DTOs/DutyTime/CreateDutyTimeDto.cs
@@ -6,8 +6,8 @@ namespace BMA.EHR.Leave.Service.DTOs.DutyTime
     public class CreateDutyTimeDto
     {
 
-        [Required, Comment("คำอธิบาย")]
-        public string Description { get; set; } = string.Empty;
+        [Comment("คำอธิบาย")]
+        public string? Description { get; set; } = string.Empty;
 
         [Required, Comment("เวลาเข้างานช่วงเช้า")]
         public string StartTimeMorning { get; set; } = "00:00";