diff --git a/devel/addon/samplewebhook/sample/main.go b/devel/addon/samplewebhook/sample/main.go
index 8bbdac265..bf97058f2 100644
--- a/devel/addon/samplewebhook/sample/main.go
+++ b/devel/addon/samplewebhook/sample/main.go
@@ -148,7 +148,7 @@ func (c *customDNSProviderSolver) Initialize(kubeClientConfig *rest.Config, stop
 
 // loadConfig is a small helper function that decodes JSON configuration into
 // the typed config struct.
-func loadConfig(cfgJSON *extapi.JSON) (customDNSProviderConfig, error) {
+func loadConfig(cfgJSON *apiextensionsv1.JSON) (customDNSProviderConfig, error) {
 	cfg := customDNSProviderConfig{}
 	// handle the 'base case' where no configuration has been provided
 	if cfgJSON == nil {