diff --git a/dev/flags/flags.c b/dev/flags/flags.c
index 711f45121..de7127d3f 100644
--- a/dev/flags/flags.c
+++ b/dev/flags/flags.c
@@ -156,6 +156,7 @@ void show_conn_flags(unsigned int f)
 	SHOW_FLAG(f, CO_FL_SEND_PROXY);
 	SHOW_FLAG(f, CO_FL_WAIT_L6_CONN);
 	SHOW_FLAG(f, CO_FL_WAIT_L4_CONN);
+	SHOW_FLAG(f, CO_FL_FDLESS);
 	SHOW_FLAG(f, CO_FL_ERROR);
 	SHOW_FLAG(f, CO_FL_SOCK_WR_SH);
 	SHOW_FLAG(f, CO_FL_SOCK_RD_SH);