diff --git a/u_parrots.go b/u_parrots.go
index bcd7c759..48a92446 100644
--- a/u_parrots.go
+++ b/u_parrots.go
@@ -2758,7 +2758,7 @@ func (uconn *UConn) ApplyPreset(p *ClientHelloSpec) error {
 					ext.KeyShares[i].Data = append(ecdheKey.PublicKey().Bytes(), kyberKey.EncapsulationKey()...)
 					if !preferredCurveIsSet {
 						// only do this once for the first non-grease curve
-						uconn.HandshakeState.State13.KeyShareKeys.Kyber = kyberKey
+						uconn.HandshakeState.State13.KeyShareKeys.kyber = kyberKey
 						preferredCurveIsSet = true
 					}
 
diff --git a/u_public.go b/u_public.go
index 742f9945..58fd85c5 100644
--- a/u_public.go
+++ b/u_public.go
@@ -904,14 +904,14 @@ func (kpk *kemPrivateKey) ToPublic() *KemPrivateKey {
 type KeySharePrivateKeys struct {
 	CurveID CurveID
 	Ecdhe   *ecdh.PrivateKey
-	Kyber   *mlkem768.DecapsulationKey
+	kyber   *mlkem768.DecapsulationKey
 }
 
 func (ksp *KeySharePrivateKeys) ToPrivate() *keySharePrivateKeys {
 	return &keySharePrivateKeys{
 		curveID: ksp.CurveID,
 		ecdhe:   ksp.Ecdhe,
-		kyber:   ksp.Kyber,
+		kyber:   ksp.kyber,
 	}
 }
 
@@ -919,6 +919,6 @@ func (ksp *keySharePrivateKeys) ToPublic() *KeySharePrivateKeys {
 	return &KeySharePrivateKeys{
 		CurveID: ksp.curveID,
 		Ecdhe:   ksp.ecdhe,
-		Kyber:   ksp.kyber,
+		kyber:   ksp.kyber,
 	}
 }