diff --git a/avr/modules/uart_fd/uartfd1.asm b/avr/modules/uart_fd/uartfd1.asm
index 0703c48..54803c7 100644
--- a/avr/modules/uart_fd/uartfd1.asm
+++ b/avr/modules/uart_fd/uartfd1.asm
@@ -474,6 +474,7 @@ uartFd1FinishReading_copyLoop:
     st X+, r18
     dec r17
   brne uartFd1FinishReading_copyLoop
+  ; add new buffer to incoming list
   rcall NET_AddIncomingMsgNum
   brcs uartFd1FinishReading_msgSaved
   rcall NET_Buffer_ReleaseByNum           ; (R16, X)