diff --git a/Core/Data/BotUserValue.cs b/Core/Data/BotUserValue.cs
index 3922469..595c167 100644
--- a/Core/Data/BotUserValue.cs
+++ b/Core/Data/BotUserValue.cs
@@ -1,5 +1,6 @@
 using System;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Runtime.Serialization.Formatters.Binary;
@@ -11,6 +12,7 @@ namespace Kruzya.TelegramBot.Core.Data
 {
     public class BotUserValue
     {
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Key]
         public Guid BotUserValueId { get; set; }