diff --git a/transport/vless/encryption/client.go b/transport/vless/encryption/client.go
index eed160be..3bef4d94 100644
--- a/transport/vless/encryption/client.go
+++ b/transport/vless/encryption/client.go
@@ -104,7 +104,7 @@ func (i *ClientInstance) Handshake(conn net.Conn) (net.Conn, error) {
 	EncodeHeader(clientHello[5+1+1184+1088:], 23, int(paddingLen))
 	rand.Read(clientHello[5+1+1184+1088+5:])
 
-	if n, err := c.Conn.Write(clientHello); n != len(clientHello) || err != nil {
+	if _, err := c.Conn.Write(clientHello); err != nil {
 		return nil, err
 	}
 	// client can send more padding / NFS AEAD messages if needed
@@ -181,7 +181,7 @@ func (c *ClientConn) Write(b []byte) (int, error) {
 			}
 		}
 		IncreaseNonce(c.nonce)
-		if n, err := c.Conn.Write(data); n != len(data) || err != nil {
+		if _, err := c.Conn.Write(data); err != nil {
 			return 0, err
 		}
 	}
@@ -196,7 +196,7 @@ func (c *ClientConn) Read(b []byte) (int, error) {
 		var t byte
 		var l int
 		var err error
-		if c.instance == nil { // 1-RTT
+		if c.instance == nil { // from 1-RTT
 			for {
 				if _, t, l, err = ReadAndDecodeHeader(c.Conn); err != nil {
 					return 0, err
diff --git a/transport/vless/encryption/doc.go b/transport/vless/encryption/doc.go
index 7009955d..96976ed9 100644
--- a/transport/vless/encryption/doc.go
+++ b/transport/vless/encryption/doc.go
@@ -8,4 +8,5 @@
 // https://github.com/XTLS/Xray-core/commit/3c20bddfcfd8999be5f9a2ac180dc959950e4c61
 // https://github.com/XTLS/Xray-core/commit/1720be168fa069332c418503d30341fc6e01df7f
 // https://github.com/XTLS/Xray-core/commit/0fd7691d6b28e05922d7a5a9313d97745a51ea63
+// https://github.com/XTLS/Xray-core/commit/09cc92c61d9067e0d65c1cae9124664ecfc78f43
 package encryption
diff --git a/transport/vless/encryption/server.go b/transport/vless/encryption/server.go
index ea4286ee..2accabe7 100644
--- a/transport/vless/encryption/server.go
+++ b/transport/vless/encryption/server.go
@@ -162,7 +162,7 @@ func (i *ServerInstance) Handshake(conn net.Conn) (net.Conn, error) {
 	EncodeHeader(serverHello[5+1088+21:], 23, int(paddingLen))
 	rand.Read(serverHello[5+1088+21+5:])
 
-	if n, err := c.Conn.Write(serverHello); n != len(serverHello) || err != nil {
+	if _, err := c.Conn.Write(serverHello); err != nil {
 		return nil, err
 	}
 	// server can send more padding / PFS AEAD messages if needed
@@ -185,7 +185,7 @@ func (c *ServerConn) Read(b []byte) (int, error) {
 		return 0, nil
 	}
 	if c.peerAead == nil {
-		if c.peerRandom == nil { // 1-RTT
+		if c.peerRandom == nil { // from 1-RTT
 			var t byte
 			var l int
 			var err error
@@ -288,7 +288,7 @@ func (c *ServerConn) Write(b []byte) (int, error) {
 			}
 		}
 		IncreaseNonce(c.nonce)
-		if n, err := c.Conn.Write(data); n != len(data) || err != nil {
+		if _, err := c.Conn.Write(data); err != nil {
 			return 0, err
 		}
 	}