diff --git a/src/mesh/FloodingRouter.cpp b/src/mesh/FloodingRouter.cpp
index b6519abdb..818bacf45 100644
--- a/src/mesh/FloodingRouter.cpp
+++ b/src/mesh/FloodingRouter.cpp
@@ -29,8 +29,8 @@ bool FloodingRouter::shouldFilterReceived(MeshPacket *p)
 
 void FloodingRouter::sniffReceived(const MeshPacket *p, const Routing *c)
 {
-    PacketId ackId = ((c && c->error_reason == Routing_Error_NONE) || !c) ? p->decoded.request_id : 0;
-    if (ackId && p->to != getNodeNum()) {
+    bool isAck = ((c && c->error_reason == Routing_Error_NONE)); // consider only ROUTING_APP message without error as ACK
+    if (isAck && p->to != getNodeNum()) {
         // do not flood direct message that is ACKed 
         DEBUG_MSG("Receiving an ACK not for me, but don't need to rebroadcast this direct message anymore.\n");
         Router::cancelSending(p->to, p->decoded.request_id);   // cancel rebroadcast for this DM