diff --git a/avr/modules/uart_hw/uart.asm b/avr/modules/uart_hw/uart.asm
index 3695514..6dff0d9 100644
--- a/avr/modules/uart_hw/uart.asm
+++ b/avr/modules/uart_hw/uart.asm
@@ -271,11 +271,11 @@ UART_StopRx:
 
 UART_StartTx:
   M_IO_READ r16, UCSRA
-  sbr r16, (1<<TXC)                            ; clear TXC interrupt
+  sbr r16, (1<<TXC)      ; clear TXC interrupt
   M_IO_WRITE UCSRA, r16
 
   M_IO_READ r16, UCSRB
-  sbr r16, (1<<TXEN)   ; enable TX UDRE and TXC1 interrupt, enable transceive
+  sbr r16, (1<<TXEN)     ; enable transceive
   M_IO_WRITE UCSRB, r16
 
   ret