diff --git a/common/singbridge/packet.go b/common/singbridge/packet.go
index 42ef966e..24f0a5f8 100644
--- a/common/singbridge/packet.go
+++ b/common/singbridge/packet.go
@@ -17,6 +17,7 @@ import (
 func CopyPacketConn(ctx context.Context, inboundConn net.Conn, link *transport.Link, destination net.Destination, serverConn net.PacketConn) error {
 	cancel := func() {
 		common.Interrupt(link.Reader)
+		common.Interrupt(serverConn)
 	}
 	conn := &PacketConnWrapper{
 		Reader: link.Reader,
diff --git a/common/singbridge/pipe.go b/common/singbridge/pipe.go
index fef0fdcb..21b39222 100644
--- a/common/singbridge/pipe.go
+++ b/common/singbridge/pipe.go
@@ -24,7 +24,8 @@ func CopyConn(ctx context.Context, inboundConn net.Conn, link *transport.Link, s
 		conn.R = &buf.BufferedReader{Reader: link.Reader}
 	}
 	cancel := func() {
-		common.Interrupt(conn.R)
+		common.Interrupt(link.Reader)
+		common.Interrupt(serverConn)
 	}
 	conn.T = signal.CancelAfterInactivity(ctx, cancel, 300*time.Second)
 	return ReturnError(bufio.CopyConn(ctx, conn, serverConn))