diff --git a/common/io/encryption.go b/common/io/encryption.go
index eb054ff3..bc59ac6c 100644
--- a/common/io/encryption.go
+++ b/common/io/encryption.go
@@ -3,8 +3,6 @@ package io
 import (
 	"crypto/cipher"
 	"io"
-
-	"github.com/v2ray/v2ray-core/common/log"
 )
 
 // CryptionReader is a general purpose reader that applies a stream cipher on top of a regular reader.
diff --git a/proxy/vmess/vmessout.go b/proxy/vmess/vmessout.go
index e2f4bf46..d72f53d4 100644
--- a/proxy/vmess/vmessout.go
+++ b/proxy/vmess/vmessout.go
@@ -168,7 +168,7 @@ func handleResponse(conn *net.TCPConn, request *protocol.VMessRequest, output ch
 	}
 
 	response := protocol.VMessResponse{}
-	nBytes, err := decryptResponseReader.Read(response[:])
+	_, err = decryptResponseReader.Read(response[:])
 	if err != nil {
 		//log.Error("VMessOut: Failed to read VMess response (%d bytes): %v", nBytes, err)
 		return