diff --git a/Foxnouns.Backend/Database/Models/DataExport.cs b/Foxnouns.Backend/Database/Models/DataExport.cs
index 6e5a719..582ffd8 100644
--- a/Foxnouns.Backend/Database/Models/DataExport.cs
+++ b/Foxnouns.Backend/Database/Models/DataExport.cs
@@ -1,4 +1,3 @@
-using System.ComponentModel.DataAnnotations.Schema;
 using NodaTime;
 
 namespace Foxnouns.Backend.Database.Models;
@@ -9,6 +8,5 @@ public class DataExport : BaseModel
     public User User { get; init; } = null!;
     public required string Filename { get; init; }
 
-    [NotMapped]
     public static readonly Duration Expiration = Duration.FromDays(15);
 }
diff --git a/Foxnouns.Backend/Database/Models/User.cs b/Foxnouns.Backend/Database/Models/User.cs
index 7eda12d..f75acde 100644
--- a/Foxnouns.Backend/Database/Models/User.cs
+++ b/Foxnouns.Backend/Database/Models/User.cs
@@ -55,10 +55,7 @@ public class User : BaseModel
         public PreferenceSize Size { get; set; }
     }
 
-    [NotMapped]
     public static readonly Duration DeleteAfter = Duration.FromDays(30);
-
-    [NotMapped]
     public static readonly Duration DeleteSuspendedAfter = Duration.FromDays(180);
 }