diff --git a/nuttx-configs/px4fmu-v2/nsh/defconfig b/nuttx-configs/px4fmu-v2/nsh/defconfig
index db7a9c5c4e..110bcb3637 100644
--- a/nuttx-configs/px4fmu-v2/nsh/defconfig
+++ b/nuttx-configs/px4fmu-v2/nsh/defconfig
@@ -308,7 +308,7 @@ CONFIG_UART4_RXDMA=y
 # CONFIG_UART7_RS485 is not set
 # CONFIG_UART7_RXDMA is not set
 # CONFIG_UART8_RS485 is not set
-# CONFIG_UART8_RXDMA is not set
+CONFIG_UART8_RXDMA=y
 CONFIG_SERIAL_DISABLE_REORDERING=y
 CONFIG_STM32_USART_SINGLEWIRE=y