diff --git a/internal/apis/acme/v1alpha2/register.go b/internal/apis/acme/v1alpha2/register.go
index 7ecc81187..92ba28607 100644
--- a/internal/apis/acme/v1alpha2/register.go
+++ b/internal/apis/acme/v1alpha2/register.go
@@ -17,6 +17,7 @@ limitations under the License.
 package v1alpha2
 
 import (
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	"github.com/jetstack/cert-manager/pkg/apis/acme"
@@ -31,6 +32,7 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	SchemeBuilder      runtime.SchemeBuilder
 	localSchemeBuilder = &SchemeBuilder
 	AddToScheme        = localSchemeBuilder.AddToScheme
 )
diff --git a/internal/apis/acme/v1alpha3/register.go b/internal/apis/acme/v1alpha3/register.go
index 62c788d38..d066fca64 100644
--- a/internal/apis/acme/v1alpha3/register.go
+++ b/internal/apis/acme/v1alpha3/register.go
@@ -17,6 +17,7 @@ limitations under the License.
 package v1alpha3
 
 import (
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	"github.com/jetstack/cert-manager/pkg/apis/acme"
@@ -31,6 +32,7 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	SchemeBuilder      runtime.SchemeBuilder
 	localSchemeBuilder = &SchemeBuilder
 	AddToScheme        = localSchemeBuilder.AddToScheme
 )
diff --git a/internal/apis/acme/v1beta1/register.go b/internal/apis/acme/v1beta1/register.go
index cc86eff05..a6d7c3d51 100644
--- a/internal/apis/acme/v1beta1/register.go
+++ b/internal/apis/acme/v1beta1/register.go
@@ -17,6 +17,7 @@ limitations under the License.
 package v1beta1
 
 import (
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	"github.com/jetstack/cert-manager/pkg/apis/acme"
@@ -31,6 +32,7 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	SchemeBuilder      runtime.SchemeBuilder
 	localSchemeBuilder = &SchemeBuilder
 	AddToScheme        = localSchemeBuilder.AddToScheme
 )
diff --git a/internal/apis/certmanager/v1alpha2/register.go b/internal/apis/certmanager/v1alpha2/register.go
index f67162e15..d3b6f2f43 100644
--- a/internal/apis/certmanager/v1alpha2/register.go
+++ b/internal/apis/certmanager/v1alpha2/register.go
@@ -17,6 +17,7 @@ limitations under the License.
 package v1alpha2
 
 import (
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	"github.com/jetstack/cert-manager/pkg/apis/certmanager"
@@ -31,6 +32,7 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	SchemeBuilder      runtime.SchemeBuilder
 	localSchemeBuilder = &SchemeBuilder
 	AddToScheme        = localSchemeBuilder.AddToScheme
 )
diff --git a/internal/apis/certmanager/v1alpha3/register.go b/internal/apis/certmanager/v1alpha3/register.go
index 6c687cae2..292f00dbf 100644
--- a/internal/apis/certmanager/v1alpha3/register.go
+++ b/internal/apis/certmanager/v1alpha3/register.go
@@ -17,6 +17,7 @@ limitations under the License.
 package v1alpha3
 
 import (
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	"github.com/jetstack/cert-manager/pkg/apis/certmanager"
@@ -31,6 +32,7 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	SchemeBuilder      runtime.SchemeBuilder
 	localSchemeBuilder = &SchemeBuilder
 	AddToScheme        = localSchemeBuilder.AddToScheme
 )
diff --git a/internal/apis/certmanager/v1beta1/register.go b/internal/apis/certmanager/v1beta1/register.go
index 5c3720a47..55a62138e 100644
--- a/internal/apis/certmanager/v1beta1/register.go
+++ b/internal/apis/certmanager/v1beta1/register.go
@@ -17,6 +17,7 @@ limitations under the License.
 package v1beta1
 
 import (
+	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 
 	"github.com/jetstack/cert-manager/pkg/apis/certmanager"
@@ -31,6 +32,7 @@ func Resource(resource string) schema.GroupResource {
 }
 
 var (
+	SchemeBuilder      runtime.SchemeBuilder
 	localSchemeBuilder = &SchemeBuilder
 	AddToScheme        = localSchemeBuilder.AddToScheme
 )