diff --git a/aspnetcore/migration/50-to-60.md b/aspnetcore/migration/50-to-60.md
index 39efddd76b..8ea018d537 100644
--- a/aspnetcore/migration/50-to-60.md
+++ b/aspnetcore/migration/50-to-60.md
@@ -350,6 +350,7 @@ For more information on NRTs, the MSBuild `Nullable` property, and updating apps
 * [Learn techniques to resolve nullable warnings](/dotnet/csharp/nullable-warnings)
 * [Update a codebase with nullable reference types to improve null diagnostic warnings](/dotnet/csharp/nullable-migration-strategies)
 * [Attributes for null-state static analysis](/dotnet/csharp/language-reference/attributes/nullable-analysis)
+* [! (null-forgiving) operator (C# reference)](/dotnet/csharp/language-reference/operators/null-forgiving)
 
 ## ASP.NET Core Module (ANCM)