diff --git a/aspnetcore/tutorials/web-api-vsc.md b/aspnetcore/tutorials/web-api-vsc.md
index bd515ee454..6f2a62ec98 100644
--- a/aspnetcore/tutorials/web-api-vsc.md
+++ b/aspnetcore/tutorials/web-api-vsc.md
@@ -79,6 +79,8 @@ Add a `TodoItem` class with the following code:
 
 [!code-csharp[Main](first-web-api/sample/TodoApi/Models/TodoItem.cs)]
 
+The database generates the `Id` when a `TodoItem` is created.
+
 ## Create the database context
 
 The *database context* is the main class that coordinates Entity Framework functionality for a given data model. You create this class by deriving from the `Microsoft.EntityFrameworkCore.DbContext` class.