diff --git a/cmd/webhook/app/webhook.go b/cmd/webhook/app/webhook.go
index ef539ef48..bb6497399 100644
--- a/cmd/webhook/app/webhook.go
+++ b/cmd/webhook/app/webhook.go
@@ -35,7 +35,7 @@ import (
 )
 
 var validationHook handlers.ValidatingAdmissionHook = handlers.NewRegistryBackedValidator(logf.Log, webhook.Scheme, webhook.ValidationRegistry)
-var mutationHook handlers.MutatingAdmissionHook = handlers.NewSchemeBackedMutator(logf.Log, webhook.Scheme, webhook.MutationRegistry)
+var mutationHook handlers.MutatingAdmissionHook = handlers.NewRegistryBackedMutator(logf.Log, webhook.Scheme, webhook.MutationRegistry)
 var conversionHook handlers.ConversionHook = handlers.NewSchemeBackedConverter(logf.Log, webhook.Scheme)
 
 func NewServerWithOptions(log logr.Logger, opts options.WebhookOptions) (*server.Server, error) {
diff --git a/pkg/webhook/handlers/mutation.go b/pkg/webhook/handlers/mutation.go
index 4a629e371..281ceebc3 100644
--- a/pkg/webhook/handlers/mutation.go
+++ b/pkg/webhook/handlers/mutation.go
@@ -30,22 +30,22 @@ import (
 	logf "github.com/jetstack/cert-manager/pkg/logs"
 )
 
-type SchemeBackedMutator struct {
+type RegistryBackedMutator struct {
 	log      logr.Logger
 	decoder  runtime.Decoder
 	registry *mutation.Registry
 }
 
-func NewSchemeBackedMutator(log logr.Logger, scheme *runtime.Scheme, registry *mutation.Registry) *SchemeBackedMutator {
+func NewRegistryBackedMutator(log logr.Logger, scheme *runtime.Scheme, registry *mutation.Registry) *RegistryBackedMutator {
 	factory := serializer.NewCodecFactory(scheme)
-	return &SchemeBackedMutator{
+	return &RegistryBackedMutator{
 		log:      log,
 		decoder:  factory.UniversalDecoder(),
 		registry: registry,
 	}
 }
 
-func (c *SchemeBackedMutator) Mutate(admissionSpec *admissionv1.AdmissionRequest) *admissionv1.AdmissionResponse {
+func (c *RegistryBackedMutator) Mutate(admissionSpec *admissionv1.AdmissionRequest) *admissionv1.AdmissionResponse {
 	status := &admissionv1.AdmissionResponse{}
 	status.UID = admissionSpec.UID
 
diff --git a/pkg/webhook/handlers/mutation_test.go b/pkg/webhook/handlers/mutation_test.go
index 39417d090..d8eba4fbf 100644
--- a/pkg/webhook/handlers/mutation_test.go
+++ b/pkg/webhook/handlers/mutation_test.go
@@ -52,7 +52,7 @@ func TestDefaultCertificate(t *testing.T) {
 	install.Install(scheme)
 
 	log := klogr.New()
-	c := NewSchemeBackedMutator(log, scheme, registry)
+	c := NewRegistryBackedMutator(log, scheme, registry)
 	tests := map[string]admissionTestT{
 		"apply defaults to TestType": {
 			inputRequest: admissionv1.AdmissionRequest{