diff --git a/src/IdempotentAPI/Core/Idempotency.cs b/src/IdempotentAPI/Core/Idempotency.cs
index e26c746..569f254 100644
--- a/src/IdempotentAPI/Core/Idempotency.cs
+++ b/src/IdempotentAPI/Core/Idempotency.cs
@@ -193,7 +193,9 @@ and not HttpContext
                     and not HttpResponse
                     and not ClaimsPrincipal
                     and not CancellationToken)
-                && (_excludeRequestSpecialTypes is null || (_excludeRequestSpecialTypes is not null && !_excludeRequestSpecialTypes.Contains(a.GetType())))
+                && (_excludeRequestSpecialTypes is null || 
+                    (_excludeRequestSpecialTypes is not null && 
+                     !_excludeRequestSpecialTypes.Any(t => a.GetType() == t || a.GetType().IsSubclassOf(t))))
                 ).ToList();
 
             string requestsDataHash = await GenerateRequestsDataHashMinimalApiAsync(filteredArguments, httpContext.Request);
diff --git a/src/IdempotentAPI/Extensions/DependencyInjection/IdempotentAPIExtensions.cs b/src/IdempotentAPI/Extensions/DependencyInjection/IdempotentAPIExtensions.cs
index a7ad418..e1a5030 100644
--- a/src/IdempotentAPI/Extensions/DependencyInjection/IdempotentAPIExtensions.cs
+++ b/src/IdempotentAPI/Extensions/DependencyInjection/IdempotentAPIExtensions.cs
@@ -59,7 +59,9 @@ public static IServiceCollection AddIdempotentMinimalAPI(this IServiceCollection
                     TimeSpan.FromMilliseconds(idempotencyOptions.DistributedLockTimeoutMilli),
                     idempotencyOptions.CacheOnlySuccessResponses,
                     idempotencyOptions.IsIdempotencyOptional,
-                    idempotencyOptions.SerializerSettings);
+                    idempotencyOptions.SerializerSettings,
+                    idempotencyOptions.ExcludeRequestSpecialTypes    
+                );
             });
 
             return serviceCollection;