diff --git a/BTCPayServer.Data/Data/ApplicationDbContext.cs b/BTCPayServer.Data/Data/ApplicationDbContext.cs
index 1de87caa7..0e18da7de 100644
--- a/BTCPayServer.Data/Data/ApplicationDbContext.cs
+++ b/BTCPayServer.Data/Data/ApplicationDbContext.cs
@@ -90,7 +90,8 @@ namespace BTCPayServer.Data
             PullPaymentData.OnModelCreating(builder);
             PayoutData.OnModelCreating(builder);
             RefundData.OnModelCreating(builder);
-
+            U2FDevice.OnModelCreating(builder);
+            
             if (Database.IsSqlite() && !_designTime)
             {
                 // SQLite does not have proper support for DateTimeOffset via Entity Framework Core, see the limitations
diff --git a/BTCPayServer.Data/Data/U2FDevice.cs b/BTCPayServer.Data/Data/U2FDevice.cs
index abf752310..57252f0e6 100644
--- a/BTCPayServer.Data/Data/U2FDevice.cs
+++ b/BTCPayServer.Data/Data/U2FDevice.cs
@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using Microsoft.EntityFrameworkCore;
 
 namespace BTCPayServer.Data
 {
@@ -18,5 +19,15 @@ namespace BTCPayServer.Data
 
         public string ApplicationUserId { get; set; }
         public ApplicationUser ApplicationUser { get; set; }
+        
+        
+        internal static void OnModelCreating(ModelBuilder builder)
+        {
+            builder.Entity<U2FDevice>()
+                .HasOne(o => o.ApplicationUser)
+                .WithMany(i => i.U2FDevices)
+                .HasForeignKey(i => i.ApplicationUserId).OnDelete(DeleteBehavior.Cascade);
+            
+        }
     }
 }