diff --git a/Communications/SimApiLoginItem.cs b/Communications/SimApiLoginItem.cs
index 963718e..96f7cf9 100644
--- a/Communications/SimApiLoginItem.cs
+++ b/Communications/SimApiLoginItem.cs
@@ -7,7 +7,7 @@ namespace SimApi.Communications;
 /// </summary>
 public class SimApiLoginItem
 {
-    public string Id { get; set; } = null!;
+    public required string Id { get; set; }
     public string[] Type { get; set; } = ["user"];
     public Dictionary<string, string> Meta { get; set; } = [];
     public object? Extra { get; set; }