diff --git a/src/OpenApi/gen/XmlCommentGenerator.cs b/src/OpenApi/gen/XmlCommentGenerator.cs
index 25f716493b83..84c736a92700 100644
--- a/src/OpenApi/gen/XmlCommentGenerator.cs
+++ b/src/OpenApi/gen/XmlCommentGenerator.cs
@@ -7,7 +7,7 @@
 
 namespace Microsoft.AspNetCore.OpenApi.SourceGenerators;
 
-[Generator]
+[Generator(LanguageNames.CSharp)]
 public sealed partial class XmlCommentGenerator : IIncrementalGenerator
 {
     public void Initialize(IncrementalGeneratorInitializationContext context)