diff --git a/openpgp/clearsign/clearsign.go b/openpgp/clearsign/clearsign.go
index 9d66e93a..90bb9fc2 100644
--- a/openpgp/clearsign/clearsign.go
+++ b/openpgp/clearsign/clearsign.go
@@ -359,7 +359,7 @@ func (d *dashEscaper) Close() (err error) {
 
 // Encode returns a WriteCloser which will clear-sign a message with privateKey
 // and write it to w. If config is nil, sensible defaults are used.
-func Encode(w io.Writer, privateKey *packet.PrivateKey, config *packet.Config, headers map[string]string) (plaintext io.WriteCloser, err error) {
+func Encode(w io.Writer, privateKey *packet.PrivateKey, config *packet.Config) (plaintext io.WriteCloser, err error) {
 	return EncodeMulti(w, []*packet.PrivateKey{privateKey}, config)
 }
 
diff --git a/openpgp/clearsign/clearsign_test.go b/openpgp/clearsign/clearsign_test.go
index 5d0396be..0e93c864 100644
--- a/openpgp/clearsign/clearsign_test.go
+++ b/openpgp/clearsign/clearsign_test.go
@@ -114,7 +114,7 @@ func TestSigning(t *testing.T) {
 	for i, test := range signingTests {
 		var buf bytes.Buffer
 
-		plaintext, err := Encode(&buf, keyring[0].PrivateKey, allowAllAlgorithmsConfig, nil)
+		plaintext, err := Encode(&buf, keyring[0].PrivateKey, allowAllAlgorithmsConfig)
 		if err != nil {
 			t.Errorf("#%d: error from Encode: %s", i, err)
 			continue
@@ -155,7 +155,7 @@ func TestSigningInterop(t *testing.T) {
 	}
 
 	var buf bytes.Buffer
-	plaintext, err := Encode(&buf, keyring[0].PrivateKey, nil, nil)
+	plaintext, err := Encode(&buf, keyring[0].PrivateKey, nil)
 	if err != nil {
 		t.Errorf("error from Encode")
 	}