diff --git a/Meshtastic/Helpers/MeshPackets.swift b/Meshtastic/Helpers/MeshPackets.swift
index 96db5fd2..44538947 100644
--- a/Meshtastic/Helpers/MeshPackets.swift
+++ b/Meshtastic/Helpers/MeshPackets.swift
@@ -628,6 +628,9 @@ func routingPacket (packet: MeshPacket, connectedNodeNum: Int64, context: NSMana
 					}
 				}
 				fetchedMessage[0].ackError = Int32(routingMessage.errorReason.rawValue)
+				if routingError == RoutingError.pkiFailed {
+					fetchedMessage[0].toUser?.keyMatch = false
+				}
 
 				if routingMessage.errorReason == Routing.Error.none {
 
diff --git a/protobufs b/protobufs
index 8b5b2faf..3e753697 160000
--- a/protobufs
+++ b/protobufs
@@ -1 +1 @@
-Subproject commit 8b5b2faf662b364754809f923271022f4f1492ed
+Subproject commit 3e753697aa1140d2c998cb63739729e733002874