diff --git a/EnvelopeGenerator.Domain/Entities/DocumentStatus.cs b/EnvelopeGenerator.Domain/Entities/DocumentStatus.cs
index c61bb4cd..3bec79c7 100644
--- a/EnvelopeGenerator.Domain/Entities/DocumentStatus.cs
+++ b/EnvelopeGenerator.Domain/Entities/DocumentStatus.cs
@@ -35,6 +35,10 @@ namespace EnvelopeGenerator.Domain.Entities
         [Column("STATUS")]
         public Constants.DocumentStatus Status { get; set; }
 
+        [Required]
+        [Column("STATUS_CHANGED_WHEN", TypeName = "datetime")]
+        public DateTime? StatusChangedWhen { get; set; }
+
         [Required]
         [Column("ADDED_WHEN", TypeName = "datetime")]
         public DateTime AddedWhen { get; set; }