From fe4870199ecc9e550b9a26e0d5483fc42f3f9d9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C4=99drzej=20Stuczy=C5=84ski?=
 <jedrzej.stuczynski@gmail.com>
Date: Thu, 12 Oct 2023 17:44:50 +0100
Subject: [PATCH] use saturating sub in case outfox is not enabled

---
 common/client-libs/gateway-client/src/traits.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/client-libs/gateway-client/src/traits.rs b/common/client-libs/gateway-client/src/traits.rs
index 54b53ffc814..cb0a3f4d221 100644
--- a/common/client-libs/gateway-client/src/traits.rs
+++ b/common/client-libs/gateway-client/src/traits.rs
@@ -42,7 +42,9 @@ pub trait GatewayPacketRouter {
                 }
 
                 n if n
-                    == PacketSize::OutfoxRegularPacket.plaintext_size() - outfox_ack_overhead =>
+                    == PacketSize::OutfoxRegularPacket
+                        .plaintext_size()
+                        .saturating_sub(outfox_ack_overhead) =>
                 {
                     trace!("received regular outfox packet");
                     received_messages.push(received_packet);