From 6e9b2a4459a108d438a917241c97f315544644c9 Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Sat, 16 Sep 2017 10:46:37 +0200
Subject: [PATCH] do not send coins to witness scripts with non-zero version

---
 lib/bitcoin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bitcoin.py b/lib/bitcoin.py
index 3673dc17b..b1dcf6da8 100644
--- a/lib/bitcoin.py
+++ b/lib/bitcoin.py
@@ -506,7 +506,7 @@ def address_from_private_key(sec):
 
 def is_segwit_address(addr):
     witver, witprog = segwit_addr.decode(SEGWIT_HRP, addr)
-    return witprog is not None
+    return witver == 0
 
 def is_b58_address(addr):
     try: