diff --git a/boards/mro/pixracerpro/nuttx-config/include/board.h b/boards/mro/pixracerpro/nuttx-config/include/board.h
index 1fffee10ba..9cda26cb73 100644
--- a/boards/mro/pixracerpro/nuttx-config/include/board.h
+++ b/boards/mro/pixracerpro/nuttx-config/include/board.h
@@ -237,8 +237,8 @@
 #define GPIO_UART4_TX    GPIO_UART4_TX_2       /* PA0  */
 #define GPIO_UART4_RX    GPIO_UART4_RX_2       /* PA1  */
 
-#define GPIO_USART6_TX   GPIO_USART6_TX_2      /* PG14 */
-#define GPIO_USART6_RX   GPIO_USART6_RX_1      /* PC7  */
+//#define GPIO_USART6_TX   GPIO_USART6_TX_2      /* PG14 */
+//#define GPIO_USART6_RX   GPIO_USART6_RX_1      /* PC7  */
 
 #define GPIO_UART7_TX    GPIO_UART7_TX_3       /* PE8  */
 #define GPIO_UART7_RX    GPIO_UART7_RX_3       /* PE7  */
diff --git a/boards/mro/pixracerpro/nuttx-config/nsh/defconfig b/boards/mro/pixracerpro/nuttx-config/nsh/defconfig
index 74a31bd189..d020ae771b 100644
--- a/boards/mro/pixracerpro/nuttx-config/nsh/defconfig
+++ b/boards/mro/pixracerpro/nuttx-config/nsh/defconfig
@@ -198,7 +198,6 @@ CONFIG_STM32H7_UART8=y
 CONFIG_STM32H7_USART1=y
 CONFIG_STM32H7_USART2=y
 CONFIG_STM32H7_USART3=y
-CONFIG_STM32H7_USART6=y
 CONFIG_STM32H7_USART_BREAKS=y
 CONFIG_STM32H7_USART_INVERT=y
 CONFIG_STM32H7_USART_SINGLEWIRE=y
@@ -228,9 +227,6 @@ CONFIG_USART3_IFLOWCONTROL=y
 CONFIG_USART3_OFLOWCONTROL=y
 CONFIG_USART3_RXBUFSIZE=600
 CONFIG_USART3_TXBUFSIZE=3000
-CONFIG_USART6_BAUD=57600
-CONFIG_USART6_RXBUFSIZE=600
-CONFIG_USART6_TXBUFSIZE=1500
 CONFIG_USBDEV=y
 CONFIG_USBDEV_BUSPOWERED=y
 CONFIG_USBDEV_MAXPOWER=500