diff --git a/src/vnet/session/stream_session.h b/src/vnet/session/stream_session.h
index 79a6839..63adc2b 100644
--- a/src/vnet/session/stream_session.h
+++ b/src/vnet/session/stream_session.h
@@ -34,6 +34,7 @@
   SESSION_STATE_TRANSPORT_CLOSING,
   SESSION_STATE_CLOSING,
   SESSION_STATE_CLOSED_WAITING,
+  SESSION_STATE_TRANSPORT_CLOSED,
   SESSION_STATE_CLOSED,
   SESSION_STATE_N_STATES,
 } stream_session_state_t;