diff --git a/src/mesh/ReliableRouter.cpp b/src/mesh/ReliableRouter.cpp
index 510782837..4936fd282 100644
--- a/src/mesh/ReliableRouter.cpp
+++ b/src/mesh/ReliableRouter.cpp
@@ -112,7 +112,7 @@ void ReliableRouter::sniffReceived(const MeshPacket *p, const Routing *c)
         // We intentionally don't check wasSeenRecently, because it is harmless to delete non existent retransmission records
         if (ackId || nakId) {
             if (ackId) {
-                DEBUG_MSG("Received a ack for 0x%x, stopping retransmissions\n", ackId);
+                DEBUG_MSG("Received an ack for 0x%x, stopping retransmissions\n", ackId);
                 stopRetransmission(p->to, ackId);
             } else {
                 DEBUG_MSG("Received a nak for 0x%x, stopping retransmissions\n", nakId);