diff --git a/conn.go b/conn.go
index 911e330..e68a2bd 100644
--- a/conn.go
+++ b/conn.go
@@ -22,7 +22,7 @@ type conn struct {
 // For the client mode just pass 0.
 // It returns io.EOF if the connection is closed and
 // there are no more packets to read.
-func (c *conn) recvPacket(orderID uint32) (uint8, []byte, error) {
+func (c *conn) recvPacket(orderID uint32) (fxp, []byte, error) {
 	return recvPacket(c, c.alloc, orderID)
 }
 
@@ -142,7 +142,7 @@ func (c *clientConn) getChannel(sid uint32) (chan<- result, bool) {
 
 // result captures the result of receiving the a packet from the server
 type result struct {
-	typ  byte
+	typ  fxp
 	data []byte
 	err  error
 }
@@ -152,7 +152,7 @@ type idmarshaler interface {
 	encoding.BinaryMarshaler
 }
 
-func (c *clientConn) sendPacket(ctx context.Context, ch chan result, p idmarshaler) (byte, []byte, error) {
+func (c *clientConn) sendPacket(ctx context.Context, ch chan result, p idmarshaler) (fxp, []byte, error) {
 	if cap(ch) < 1 {
 		ch = make(chan result, 1)
 	}
diff --git a/packet.go b/packet.go
index 480d0e7..93fb8a4 100644
--- a/packet.go
+++ b/packet.go
@@ -304,7 +304,7 @@ func sendPacket(w io.Writer, m encoding.BinaryMarshaler) error {
 	return nil
 }
 
-func recvPacket(r io.Reader, alloc *allocator, orderID uint32) (uint8, []byte, error) {
+func recvPacket(r io.Reader, alloc *allocator, orderID uint32) (fxp, []byte, error) {
 	var b []byte
 	if alloc != nil {
 		b = alloc.GetPage(orderID)
diff --git a/packet_test.go b/packet_test.go
index 98455ab..59a1b21 100644
--- a/packet_test.go
+++ b/packet_test.go
@@ -468,7 +468,7 @@ func TestRecvPacket(t *testing.T) {
 	var recvPacketTests = []struct {
 		b []byte
 
-		want    uint8
+		want    fxp
 		body    []byte
 		wantErr error
 	}{
diff --git a/request-server.go b/request-server.go
index 11047e6..08c24d7 100644
--- a/request-server.go
+++ b/request-server.go
@@ -148,7 +148,7 @@ func (rs *RequestServer) serveLoop(pktChan chan<- orderedRequest) error {
 
 	var err error
 	var pkt requestPacket
-	var pktType uint8
+	var pktType fxp
 	var pktBytes []byte
 
 	for {
@@ -158,7 +158,7 @@ func (rs *RequestServer) serveLoop(pktChan chan<- orderedRequest) error {
 			return err
 		}
 
-		pkt, err = makePacket(rxPacket{fxp(pktType), pktBytes})
+		pkt, err = makePacket(rxPacket{pktType, pktBytes})
 		if err != nil {
 			switch {
 			case errors.Is(err, errUnknownExtendedPacket):
diff --git a/server.go b/server.go
index cd656d8..7735c42 100644
--- a/server.go
+++ b/server.go
@@ -390,7 +390,7 @@ func (svr *Server) Serve() error {
 
 	var err error
 	var pkt requestPacket
-	var pktType uint8
+	var pktType fxp
 	var pktBytes []byte
 	for {
 		pktType, pktBytes, err = svr.serverConn.recvPacket(svr.pktMgr.getNextOrderID())
@@ -403,7 +403,7 @@ func (svr *Server) Serve() error {
 			break
 		}
 
-		pkt, err = makePacket(rxPacket{fxp(pktType), pktBytes})
+		pkt, err = makePacket(rxPacket{pktType, pktBytes})
 		if err != nil {
 			switch {
 			case errors.Is(err, errUnknownExtendedPacket):
diff --git a/sftp.go b/sftp.go
index 778c8f3..1e698bb 100644
--- a/sftp.go
+++ b/sftp.go
@@ -184,15 +184,15 @@ func (f fx) String() string {
 }
 
 type unexpectedPacketErr struct {
-	want, got uint8
+	want, got fxp
 }
 
 func (u *unexpectedPacketErr) Error() string {
-	return fmt.Sprintf("sftp: unexpected packet: want %v, got %v", fxp(u.want), fxp(u.got))
+	return fmt.Sprintf("sftp: unexpected packet: want %v, got %v", u.want, u.got)
 }
 
-func unimplementedPacketErr(u uint8) error {
-	return fmt.Errorf("sftp: unimplemented packet type: got %v", fxp(u))
+func unimplementedPacketErr(u fxp) error {
+	return fmt.Errorf("sftp: unimplemented packet type: got %v", u)
 }
 
 type unexpectedIDErr struct{ want, got uint32 }