diff --git a/nuttx-configs/px4fmu-v2/nsh/defconfig b/nuttx-configs/px4fmu-v2/nsh/defconfig
index ab8f9eef62..19e0f7c632 100644
--- a/nuttx-configs/px4fmu-v2/nsh/defconfig
+++ b/nuttx-configs/px4fmu-v2/nsh/defconfig
@@ -560,8 +560,8 @@ CONFIG_USART1_2STOP=0
 #
 # USART2 Configuration
 #
-CONFIG_USART2_RXBUFSIZE=512
-CONFIG_USART2_TXBUFSIZE=512
+CONFIG_USART2_RXBUFSIZE=600
+CONFIG_USART2_TXBUFSIZE=2200
 CONFIG_USART2_BAUD=57600
 CONFIG_USART2_BITS=8
 CONFIG_USART2_PARITY=0