diff --git a/pkg/certmanager/certificate.go b/pkg/certmanager/certificate.go
index a5c2441..c6fbeeb 100644
--- a/pkg/certmanager/certificate.go
+++ b/pkg/certmanager/certificate.go
@@ -77,7 +77,7 @@ func (c *certificateClient) Create(
 		},
 	}
 
-	obj, err := runtime.DefaultUnstructuredConverter.ToUnstructured(cert)
+	obj, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&cert)
 	if err != nil {
 		return errors.Join(ErrCertificateToUnstructured, err)
 	}