diff --git a/nuttx-configs/mindpx-v2/nsh/defconfig b/nuttx-configs/mindpx-v2/nsh/defconfig
index 7d6b5a2a08..5c432680a3 100644
--- a/nuttx-configs/mindpx-v2/nsh/defconfig
+++ b/nuttx-configs/mindpx-v2/nsh/defconfig
@@ -1082,7 +1082,7 @@ CONFIG_CDCACM_NRDREQS=4
 CONFIG_CDCACM_NWRREQS=4
 CONFIG_CDCACM_BULKIN_REQLEN=96
 CONFIG_CDCACM_RXBUFSIZE=600
-CONFIG_CDCACM_TXBUFSIZE=4000
+CONFIG_CDCACM_TXBUFSIZE=2000
 CONFIG_CDCACM_VENDORID=0x26ac
 CONFIG_CDCACM_PRODUCTID=0x0030
 CONFIG_CDCACM_VENDORSTR="3D Robotics"