diff --git a/src/BuiltInTools/HotReloadAgent.Data/StaticAssetUpdate.cs b/src/BuiltInTools/HotReloadAgent.Data/StaticAssetUpdate.cs
index 3601980b93ee..7e84196320d7 100644
--- a/src/BuiltInTools/HotReloadAgent.Data/StaticAssetUpdate.cs
+++ b/src/BuiltInTools/HotReloadAgent.Data/StaticAssetUpdate.cs
@@ -1,3 +1,6 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
 namespace Microsoft.DotNet.HotReload;
 
 internal readonly struct StaticAssetUpdate(
diff --git a/src/BuiltInTools/HotReloadAgent/MetadataUpdateHandlerInvoker.cs b/src/BuiltInTools/HotReloadAgent/MetadataUpdateHandlerInvoker.cs
index b3fd04398a4b..c402c843b0e7 100644
--- a/src/BuiltInTools/HotReloadAgent/MetadataUpdateHandlerInvoker.cs
+++ b/src/BuiltInTools/HotReloadAgent/MetadataUpdateHandlerInvoker.cs
@@ -327,7 +327,7 @@ internal static List<Assembly> TopologicalSort(Assembly[] assemblies)
 
         static void Visit(Assembly[] assemblies, Assembly assembly, List<Assembly> sortedAssemblies, HashSet<string> visited)
         {
-            string assemblyIdentifier;
+            string? assemblyIdentifier;
 
             try
             {