diff --git a/Marco.Pms.Model/Dtos/Projects/ProjectAllocationDot.cs b/Marco.Pms.Model/Dtos/Projects/ProjectAllocationDot.cs
index deb20a3..218c75c 100644
--- a/Marco.Pms.Model/Dtos/Projects/ProjectAllocationDot.cs
+++ b/Marco.Pms.Model/Dtos/Projects/ProjectAllocationDot.cs
@@ -5,7 +5,7 @@
         public Guid EmployeeId { get; set; }
         public Guid JobRoleId { get; set; }
         public Guid ProjectId { get; set; }
-        public Guid ServiceId { get; set; }
+        public Guid? ServiceId { get; set; }
         public bool Status { get; set; }
     }
 
@@ -14,7 +14,7 @@
     {
         public Guid ProjectId { get; set; }
         public Guid JobRoleId { get; set; }
-        public Guid ServiceId { get; set; }
+        public Guid? ServiceId { get; set; }
         public bool Status { get; set; }
     }
 }