diff --git a/proxy/proxy.go b/proxy/proxy.go
index 01c05fa..f1a7701 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -13,6 +13,8 @@ import (
 	"github.com/xvzc/SpoofDPI/util"
 )
 
+const BUFFER_SIZE = 1024
+
 type Proxy struct {
 	addr           string
 	port           int
@@ -31,7 +33,7 @@ func New(config *util.Config) *Proxy {
 		windowSize:     *config.WindowSize,
 		allowedPattern: config.AllowedPattern,
 		resolver:       dns.NewResolver(config),
-		bufferSize:     *config.BufferSize,
+		bufferSize:     BUFFER_SIZE,
 	}
 }
 
diff --git a/util/config.go b/util/config.go
index 2b5a9d1..27ec576 100644
--- a/util/config.go
+++ b/util/config.go
@@ -22,7 +22,6 @@ type Config struct {
 	AllowedPattern []*regexp.Regexp
 	WindowSize     *int
 	Version        *bool
-	BufferSize     *int
 }
 
 type StringArray []string
@@ -59,7 +58,6 @@ when not given, the client hello packet will be sent in two parts:
 fragmentation for the first data packet and the rest
 `)
 	config.Version = flag.Bool("v", false, "print spoof-dpi's version; this may contain some other relevant information")
-	config.BufferSize = flag.Int("buffer-size", 1024, "buffer size, in number of bytes, is the maximum amount of data that can be read at once from a remote resource")
 	var allowedPattern StringArray
 	flag.Var(
 		&allowedPattern,