diff --git a/src/WebApplicationMinimalApi8/EndpointFilters/ResponseAddTraceIdFilter.cs b/src/WebApplicationMinimalApi8/EndpointFilters/ResponseAddTraceIdFilter.cs
index d626239..73a9b03 100644
--- a/src/WebApplicationMinimalApi8/EndpointFilters/ResponseAddTraceIdFilter.cs
+++ b/src/WebApplicationMinimalApi8/EndpointFilters/ResponseAddTraceIdFilter.cs
@@ -18,7 +18,6 @@ public class ResponseAddTraceIdFilter : IEndpointFilter
 
         return ret switch
         {
-            //ValidationProblem c => AddTraceIdForFluentValidation(c),
             IValueHttpResult v => Results.Text
             (
                 AddTraceId(v.Value).ToJsonString(serializerOptions),
@@ -47,12 +46,6 @@ public class ResponseAddTraceIdFilter : IEndpointFilter
             _ => ret
         };
 
-        ValidationProblem AddTraceIdForFluentValidation(ValidationProblem v)
-        {
-            v.ProblemDetails.Extensions["traceId"] = id;
-            return v;
-        }
-
         JsonNode AddTraceId(object? value)
         {
             var root = JsonSerializer.SerializeToNode(value, serializerOptions)!.Root;