diff --git a/dcrec/secp256k1/ciphering.go b/dcrec/secp256k1/ciphering.go
index e3f39830..57cbf755 100644
--- a/dcrec/secp256k1/ciphering.go
+++ b/dcrec/secp256k1/ciphering.go
@@ -42,7 +42,7 @@ var (
 )
 
 // GenerateSharedSecret generates a shared secret based on a private key and a
-// private key using Diffie-Hellman key exchange (ECDH) (RFC 4753).
+// public key using Diffie-Hellman key exchange (ECDH) (RFC 4753).
 // RFC5903 Section 9 states we should only return x.
 func GenerateSharedSecret(privkey *PrivateKey, pubkey *PublicKey) []byte {
 	x, _ := pubkey.Curve.ScalarMult(pubkey.X, pubkey.Y, privkey.D.Bytes())