diff --git a/avr/modules/uart_hw/net_uart.asm b/avr/modules/uart_hw/net_uart.asm
index 6f9b872..c31c126 100644
--- a/avr/modules/uart_hw/net_uart.asm
+++ b/avr/modules/uart_hw/net_uart.asm
@@ -171,6 +171,10 @@ netUartRecvPacket_haveBuf:
   rcall UART_StopRx                          ; (R16)
   sec
   ret
+netUartRecvPacket_noAddMsg:
+  rcall NET_Buffer_ReleaseByNum              ; (R16, X)
+  ldi r16, NET_IFACE_OFFS_ERR_MISSED_LOW
+  rjmp netUartRecvPacket_incCounterRet
 netUartRecvPacket_releaseBufRet:
   rcall NET_Buffer_ReleaseByNum              ; (R16, X)
   ldi r16, NET_IFACE_OFFS_ERR_NOBUF_LOW
@@ -212,13 +216,14 @@ netUartRecvPacketIntoX:
   sec
   ret
 netUartRecvPacketIntoX_handleError:
-  mov r17, r16
-  cpi r17, UART_ERROR_IO
-  ldi r16, NET_IFACE_OFFS_ERR_IO_LOW
-  breq netUartRecvPacketIntoX_incCounterRetNc
-  cpi r17, UART_ERROR_CONTENT
+  cpi r16, UART_ERROR_IO
+  breq netUartRecvPacketIntoX_ioError
+  cpi r16, UART_ERROR_CONTENT
   breq netUartRecvPacketIntoX_contentError
   rjmp netUartRecvPacketIntoX_retNc
+netUartRecvPacketIntoX_ioError:
+  ldi r16, NET_IFACE_OFFS_ERR_IO_LOW
+  rjmp netUartRecvPacketIntoX_incCounterRetNc
 netUartRecvPacketIntoX_contentError:
   ldi r16, NET_IFACE_OFFS_ERR_CONTENT_LOW
 netUartRecvPacketIntoX_incCounterRetNc: