From f60bbf96d8d5f71735055f14416d5e8b6792e6f9 Mon Sep 17 00:00:00 2001
From: coval3nte <65908512+coval3nte@users.noreply.github.com>
Date: Mon, 28 Feb 2022 15:17:56 +0100
Subject: [PATCH] fix

---
 electrum/interface.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/electrum/interface.py b/electrum/interface.py
index 955538570..20d12a189 100644
--- a/electrum/interface.py
+++ b/electrum/interface.py
@@ -1019,7 +1019,7 @@ class Interface(Logger):
         # check response
         assert_dict_contains_field(res, field_name='confirmed')
         assert_dict_contains_field(res, field_name='unconfirmed')
-        assert_integer(res['confirmed'])
+        assert_non_negative_integer(res['confirmed'])
         assert_integer(res['unconfirmed'])
         return res