diff --git a/os/hal/platforms/STM32/USARTv1/uart_lld.c b/os/hal/platforms/STM32/USARTv1/uart_lld.c
index 01c5627ac..1e71ea016 100644
--- a/os/hal/platforms/STM32/USARTv1/uart_lld.c
+++ b/os/hal/platforms/STM32/USARTv1/uart_lld.c
@@ -175,7 +175,7 @@ static void usart_start(UARTDriver *uartp) {
   usart_stop(uartp);
 
   /* Baud rate setting.*/
-  if (uartp->usart == USART1)
+  if ((uartp->usart == USART1) || (uartp->usart == USART6))
     u->BRR = STM32_PCLK2 / uartp->config->speed;
   else
     u->BRR = STM32_PCLK1 / uartp->config->speed;