diff --git a/protocol/vless/inbound.go b/protocol/vless/inbound.go
index f9e505a8..3cc53db4 100644
--- a/protocol/vless/inbound.go
+++ b/protocol/vless/inbound.go
@@ -15,11 +15,11 @@ import (
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
 	"github.com/sagernet/sing-box/transport/v2ray"
-	"github.com/sagernet/sing-vmess"
 	"github.com/sagernet/sing-vmess/packetaddr"
 	"github.com/sagernet/sing-vmess/vless"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
+	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 	"github.com/sagernet/sing/common/logger"
@@ -189,7 +189,7 @@ func (h *Inbound) newPacketConnectionEx(ctx context.Context, conn N.PacketConn,
 	}
 	if metadata.Destination.Fqdn == packetaddr.SeqPacketMagicAddress {
 		metadata.Destination = M.Socksaddr{}
-		conn = packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination)
+		conn = packetaddr.NewConn(bufio.NewNetPacketConn(conn), metadata.Destination)
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet addr connection")
 	} else {
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)
diff --git a/protocol/vmess/inbound.go b/protocol/vmess/inbound.go
index 706beb17..059d4775 100644
--- a/protocol/vmess/inbound.go
+++ b/protocol/vmess/inbound.go
@@ -19,6 +19,7 @@ import (
 	"github.com/sagernet/sing-vmess/packetaddr"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/auth"
+	"github.com/sagernet/sing/common/bufio"
 	E "github.com/sagernet/sing/common/exceptions"
 	F "github.com/sagernet/sing/common/format"
 	"github.com/sagernet/sing/common/logger"
@@ -203,7 +204,7 @@ func (h *Inbound) newPacketConnectionEx(ctx context.Context, conn N.PacketConn,
 	}
 	if metadata.Destination.Fqdn == packetaddr.SeqPacketMagicAddress {
 		metadata.Destination = M.Socksaddr{}
-		conn = packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination)
+		conn = packetaddr.NewConn(bufio.NewNetPacketConn(conn), metadata.Destination)
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet addr connection")
 	} else {
 		h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)