diff --git a/reverie-ptrace/src/gdbstub/session.rs b/reverie-ptrace/src/gdbstub/session.rs
index 3a7df3b..8864bce 100644
--- a/reverie-ptrace/src/gdbstub/session.rs
+++ b/reverie-ptrace/src/gdbstub/session.rs
@@ -60,6 +60,7 @@ pub struct Session {
     pub stream_tx: BoxWriter,
 
     /// buffer use to send data over to tcp stream
+    #[allow(dead_code)]
     pub tx_buf: BytesMut,
 
     /// Gdb remote protocol command notifier.