diff --git a/pkg/crypto/keys/publickey.go b/pkg/crypto/keys/publickey.go
index 840b87e34..5d1e5ce41 100644
--- a/pkg/crypto/keys/publickey.go
+++ b/pkg/crypto/keys/publickey.go
@@ -115,7 +115,7 @@ func (p *PublicKey) Cmp(key *PublicKey) int {
 }
 
 // NewPublicKeyFromString returns a public key created from the
-// given hex string.
+// given hex string public key representation in compressed form.
 func NewPublicKeyFromString(s string) (*PublicKey, error) {
 	b, err := hex.DecodeString(s)
 	if err != nil {