diff --git a/aspnetcore/web-api/index.md b/aspnetcore/web-api/index.md
index d810f1a08b..458b7e69b0 100644
--- a/aspnetcore/web-api/index.md
+++ b/aspnetcore/web-api/index.md
@@ -5,7 +5,7 @@ description: Learn the basics of creating a web API in ASP.NET Core.
 monikerRange: '>= aspnetcore-2.1'
 ms.author: scaddie
 ms.custom: mvc
-ms.date: 04/11/2019
+ms.date: 05/07/2019
 uid: web-api/index
 ---
 
@@ -133,6 +133,10 @@ To customize the response that results from a validation error, use <xref:Micros
 
 [!code-csharp[](index/samples/2.x/Startup.cs?name=snippet_ConfigureBadRequestResponse&highlight=3-20)]
 
+### Log automatic 400 responses
+
+See [How to log automatic 400 responses on model validation errors (aspnet/AspNetCore.Docs #12157)](https://github.com/aspnet/AspNetCore.Docs/issues/12157).
+
 ### Disable automatic 400
 
 To disable the automatic 400 behavior, set the <xref:Microsoft.AspNetCore.Mvc.ApiBehaviorOptions.SuppressModelStateInvalidFilter> property to `true`. Add the following highlighted code in `Startup.ConfigureServices` after `services.AddMvc().SetCompatibilityVersion`: