diff --git a/contrib/debug/flags.c b/contrib/debug/flags.c
index 558072f26..959d25190 100644
--- a/contrib/debug/flags.c
+++ b/contrib/debug/flags.c
@@ -135,6 +135,7 @@ void show_conn_flags(unsigned int f)
 	SHOW_FLAG(f, CO_FL_ADDR_TO_SET);
 	SHOW_FLAG(f, CO_FL_ADDR_FROM_SET);
 	SHOW_FLAG(f, CO_FL_WAIT_ROOM);
+	SHOW_FLAG(f, CO_FL_WILL_UPDATE);
 	SHOW_FLAG(f, CO_FL_XPRT_READY);
 	SHOW_FLAG(f, CO_FL_CTRL_READY);
 	SHOW_FLAG(f, CO_FL_CURR_WR_ENA);