From e325598e674022af82ef5f976e9b11f430fb71bf Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Mon, 6 Jan 2020 21:50:55 -0500
Subject: [PATCH] Avoid treating option_upfront_shutdown (req) as
 unknown_required.

This fixes the bitmask in requires_unknown_bits.
---
 lightning/src/ln/features.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index dd0b7fa1a..d7e0299e8 100644
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -187,7 +187,7 @@ impl<T: sealed::Context> Features<T> {
 	pub(crate) fn requires_unknown_bits(&self) -> bool {
 		self.flags.iter().enumerate().any(|(idx, &byte)| {
 			(match idx {
-				0 => (byte & 0b00010100),
+				0 => (byte & 0b01000100),
 				1 => (byte & 0b01010100),
 				_ => (byte & 0b01010101),
 			}) != 0
-- 
2.39.5