diff --git a/did/crypto.go b/did/crypto.go
index 87e561f..d0065a7 100644
--- a/did/crypto.go
+++ b/did/crypto.go
@@ -204,8 +204,8 @@ func codeForCurve(pubKey crypto.PubKey) (multicodec.Code, error) {
 // package treats it as a different type and has a different format for
 // the raw bytes of the public key.
 //
-// If a valid ECDSA public key was created the secp256k1.S256 curve, this
-// function will "convert" it from a crypto.ECDSAPubKey to a
+// If a valid ECDSA public key was created using the secp256k1.S256 curve,
+// this function will "convert" it from a crypto.ECDSAPubKey to a
 // crypto.Secp256k1PublicKey.
 func coerceECDSAToSecp256k1(pubKey crypto.PubKey) (crypto.PubKey, error) {
 	stdPub, err := crypto.PubKeyToStdKey(pubKey)