diff --git a/openssl/ecdh.go b/openssl/ecdh.go
index 0dbb948..a13c411 100644
--- a/openssl/ecdh.go
+++ b/openssl/ecdh.go
@@ -83,7 +83,6 @@ func NewPrivateKeyECDH(curve string, bytes []byte) (*PrivateKeyECDH, error) {
 		return nil, newOpenSSLError("EC_KEY_set_private_key")
 	}
 	k := &PrivateKeyECDH{curve, key}
-	// Note: Same as in NewPublicKeyECDH regarding finalizer and KeepAlive.
 	runtime.SetFinalizer(k, (*PrivateKeyECDH).finalize)
 	return k, nil
 }
@@ -208,7 +207,6 @@ func GenerateKeyECDH(curve string) (*PrivateKeyECDH, []byte, error) {
 	}
 
 	k := &PrivateKeyECDH{curve, key}
-	// Note: Same as in NewPublicKeyECDH regarding finalizer and KeepAlive.
 	runtime.SetFinalizer(k, (*PrivateKeyECDH).finalize)
 	return k, bytes, nil
 }
diff --git a/openssl/ecdh_test.go b/openssl/ecdh_test.go
index 93faa7e..c67364d 100644
--- a/openssl/ecdh_test.go
+++ b/openssl/ecdh_test.go
@@ -15,7 +15,7 @@ import (
 )
 
 // The following tests has been copied from
-// https://github.com/golang/go/blob/master/src/crypto/ecdh/ecdh_test.go.
+// https://github.com/golang/go/blob/bb0d8297d76cb578baad8fa1485565d9acf44cc5/src/crypto/ecdh/ecdh_test.go.
 
 func TestECDH(t *testing.T) {
 	for _, tt := range []string{"P-256", "P-384", "P-521"} {