diff --git a/proxy/socks/protocol/udp.go b/proxy/socks/protocol/udp.go
index 00615275b..41995dfd3 100644
--- a/proxy/socks/protocol/udp.go
+++ b/proxy/socks/protocol/udp.go
@@ -2,7 +2,6 @@ package protocol
 
 import (
 	"errors"
-	"net"
 
 	"github.com/v2ray/v2ray-core/common/alloc"
 	"github.com/v2ray/v2ray-core/common/log"