diff --git a/Models/UniApiEntity/xxwms_rt_det.cs b/Models/UniApiEntity/xxwms_rt_det.cs
index a3b8855..edce08e 100644
--- a/Models/UniApiEntity/xxwms_rt_det.cs
+++ b/Models/UniApiEntity/xxwms_rt_det.cs
@@ -23,7 +23,6 @@ namespace CK.SCP.Models.UniApiEntity
         public int xxwms_rt_po_line { get; set; }
 
         [Required(AllowEmptyStrings = true)]
-        [StringLength(18)]
         public string xxwms_rt_part { get; set; }
 
         public decimal xxwms_rt_qty_total { get; set; }