diff --git a/authority/tls.go b/authority/tls.go
index 0eaace82..d7be04fc 100644
--- a/authority/tls.go
+++ b/authority/tls.go
@@ -72,10 +72,6 @@ func withDefaultASN1DN(def *config.ASN1DN) provisioner.CertificateModifierFunc {
 	}
 }
 
-type raProvisioner interface {
-	RAInfo() *provisioner.RAInfo
-}
-
 // Sign creates a signed certificate from a certificate signing request.
 func (a *Authority) Sign(csr *x509.CertificateRequest, signOpts provisioner.SignOptions, extraOpts ...provisioner.SignOption) ([]*x509.Certificate, error) {
 	var (