diff --git a/WGneu/Models/AT_Ort.cs b/WGneu/Models/AT_Ort.cs
index 1c59483..3b36dcf 100644
--- a/WGneu/Models/AT_Ort.cs
+++ b/WGneu/Models/AT_Ort.cs
@@ -16,7 +16,7 @@ namespace WGneu.Models {
         public int Gkz { get; set; }
 
         [Column("kgnr")]
-        public int KgNr { get; set; }
+        public int? KgNr { get; set; }
 
         [Column("name")]
         public string Name { get; set; }
@@ -25,6 +25,6 @@ namespace WGneu.Models {
         public virtual AT_Gem Gem { get; set; }
 
         [ForeignKey("KgNr")]
-        public virtual AT_Kg Kg { get; set; }
+        public virtual AT_Kg? Kg { get; set; }
     }
 }