diff --git a/src/crypto/x509/pkcs1.go b/src/crypto/x509/pkcs1.go
index df20a44204..73bc7623a5 100644
--- a/src/crypto/x509/pkcs1.go
+++ b/src/crypto/x509/pkcs1.go
@@ -35,6 +35,12 @@ type pkcs1AdditionalRSAPrime struct {
 	Coeff *big.Int
 }
 
+// pkcs1PublicKey reflects the ASN.1 structure of a PKCS#1 public key.
+type pkcs1PublicKey struct {
+	N *big.Int
+	E int
+}
+
 // ParsePKCS1PrivateKey returns an RSA private key from its ASN.1 PKCS#1 DER encoded form.
 func ParsePKCS1PrivateKey(der []byte) (*rsa.PrivateKey, error) {
 	var priv pkcs1PrivateKey
@@ -113,9 +119,3 @@ func MarshalPKCS1PrivateKey(key *rsa.PrivateKey) []byte {
 	b, _ := asn1.Marshal(priv)
 	return b
 }
-
-// rsaPublicKey reflects the ASN.1 structure of a PKCS#1 public key.
-type rsaPublicKey struct {
-	N *big.Int
-	E int
-}
diff --git a/src/crypto/x509/x509.go b/src/crypto/x509/x509.go
index 2934168c74..f572e7f2e9 100644
--- a/src/crypto/x509/x509.go
+++ b/src/crypto/x509/x509.go
@@ -59,7 +59,7 @@ func ParsePKIXPublicKey(derBytes []byte) (pub interface{}, err error) {
 func marshalPublicKey(pub interface{}) (publicKeyBytes []byte, publicKeyAlgorithm pkix.AlgorithmIdentifier, err error) {
 	switch pub := pub.(type) {
 	case *rsa.PublicKey:
-		publicKeyBytes, err = asn1.Marshal(rsaPublicKey{
+		publicKeyBytes, err = asn1.Marshal(pkcs1PublicKey{
 			N: pub.N,
 			E: pub.E,
 		})
@@ -941,7 +941,7 @@ func parsePublicKey(algo PublicKeyAlgorithm, keyData *publicKeyInfo) (interface{
 			return nil, errors.New("x509: RSA key missing NULL parameters")
 		}
 
-		p := new(rsaPublicKey)
+		p := new(pkcs1PublicKey)
 		rest, err := asn1.Unmarshal(asn1Data, p)
 		if err != nil {
 			return nil, err