diff --git a/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java b/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java
index 30746797b0c0c..49026dc2197d4 100644
--- a/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java
+++ b/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java
@@ -500,8 +500,7 @@ public void setupEndpoints(ApplicationIndexBuildItem applicationIndexBuildItem,
                                         initConverters.getMethodParam(0));
                             }))
                     .setConverterSupplierIndexerExtension(new GeneratedConverterIndexerExtension(
-                            (name) -> new GeneratedClassGizmoAdaptor(generatedClassBuildItemBuildProducer,
-                                    applicationClassPredicate.test(name))))
+                            (name) -> new GeneratedClassGizmoAdaptor(generatedClassBuildItemBuildProducer, true)))
                     .setHasRuntimeConverters(!paramConverterProviders.getParamConverterProviders().isEmpty())
                     .setClassLevelExceptionMappers(
                             classLevelExceptionMappers.isPresent() ? classLevelExceptionMappers.get().getMappers()