diff --git a/app/proxyman/mux/writer.go b/app/proxyman/mux/writer.go
index 30b76e28e..a2f802628 100644
--- a/app/proxyman/mux/writer.go
+++ b/app/proxyman/mux/writer.go
@@ -67,8 +67,5 @@ func (w *Writer) Close() {
 	frame := buf.New()
 	frame.AppendSupplier(meta.AsSupplier())
 
-	mb := buf.NewMultiBuffer()
-	mb.Append(frame)
-
-	w.writer.Write(mb)
+	w.writer.Write(buf.NewMultiBufferValue(frame))
 }
diff --git a/proxy/blackhole/config.go b/proxy/blackhole/config.go
index 7633fc85d..837b997cd 100644
--- a/proxy/blackhole/config.go
+++ b/proxy/blackhole/config.go
@@ -28,9 +28,7 @@ func (v *NoneResponse) WriteTo(buf.Writer) {}
 func (v *HTTPResponse) WriteTo(writer buf.Writer) {
 	b := buf.NewLocal(512)
 	b.AppendSupplier(serial.WriteString(http403response))
-	mb := buf.NewMultiBuffer()
-	mb.Append(b)
-	writer.Write(mb)
+	writer.Write(buf.NewMultiBufferValue(b))
 }
 
 // GetInternalResponse converts response settings from proto to internal data structure.
diff --git a/proxy/shadowsocks/ota.go b/proxy/shadowsocks/ota.go
index 0c8fbd26f..56d8a87b7 100644
--- a/proxy/shadowsocks/ota.go
+++ b/proxy/shadowsocks/ota.go
@@ -100,10 +100,7 @@ func (v *ChunkReader) Read() (buf.MultiBuffer, error) {
 	}
 	buffer.SliceFrom(AuthSize)
 
-	mb := buf.NewMultiBuffer()
-	mb.Append(buffer)
-
-	return mb, nil
+	return buf.NewMultiBufferValue(buffer), nil
 }
 
 type ChunkWriter struct {
diff --git a/proxy/shadowsocks/protocol.go b/proxy/shadowsocks/protocol.go
index daec7b61e..d4f567bf1 100644
--- a/proxy/shadowsocks/protocol.go
+++ b/proxy/shadowsocks/protocol.go
@@ -374,9 +374,7 @@ func (v *UDPReader) Read() (buf.MultiBuffer, error) {
 		buffer.Release()
 		return nil, err
 	}
-	mb := buf.NewMultiBuffer()
-	mb.Append(payload)
-	return mb, nil
+	return buf.NewMultiBufferValue(payload), nil
 }
 
 type UDPWriter struct {
diff --git a/proxy/socks/protocol.go b/proxy/socks/protocol.go
index 0175f8a27..c6dd66482 100644
--- a/proxy/socks/protocol.go
+++ b/proxy/socks/protocol.go
@@ -358,9 +358,7 @@ func (r *UDPReader) Read() (buf.MultiBuffer, error) {
 	}
 	b.Clear()
 	b.Append(data)
-	mb := buf.NewMultiBuffer()
-	mb.Append(b)
-	return mb, nil
+	return buf.NewMultiBufferValue(b), nil
 }
 
 type UDPWriter struct {