diff --git a/api/pkg/filtermanager/api_impl_129.go b/api/pkg/filtermanager/api_impl_129.go
index 72aad216..dd34e56a 100644
--- a/api/pkg/filtermanager/api_impl_129.go
+++ b/api/pkg/filtermanager/api_impl_129.go
@@ -37,24 +37,16 @@ func (cb *filterManagerCallbackHandler) RefreshRouteCache() {
 	api.LogErrorf("RefreshRouteCache is not implemented: %s", debug.Stack())
 }
 
-type filterCallbackHandlerWrapper struct {
-	capi.FilterCallbackHandler
-}
-
-func NewFilterCallbackHandlerWrapper(h capi.FilterCallbackHandler) capi.FilterCallbackHandler {
-	return &filterCallbackHandlerWrapper{FilterCallbackHandler: h}
-}
-
-func (w *filterCallbackHandlerWrapper) AddData([]byte, bool) {
+func (cb *filterManagerCallbackHandler) AddData([]byte, bool) {
 	api.LogErrorf("AddData is not implemented: %s", debug.Stack())
 }
 
 func (cb *filterManagerCallbackHandler) DecoderFilterCallbacks() api.DecoderFilterCallbacks {
-	return NewFilterCallbackHandlerWrapper(cb.FilterCallbackHandler)
+	return cb
 }
 
 func (cb *filterManagerCallbackHandler) EncoderFilterCallbacks() api.EncoderFilterCallbacks {
-	return NewFilterCallbackHandlerWrapper(cb.FilterCallbackHandler)
+	return cb
 }
 
 func (cb *filterManagerCallbackHandler) Continue(st capi.StatusType, _ bool) {