diff --git a/nuttx-configs/px4fmu-v2/nsh/defconfig b/nuttx-configs/px4fmu-v2/nsh/defconfig
index c0ed11a621..ad845e095b 100644
--- a/nuttx-configs/px4fmu-v2/nsh/defconfig
+++ b/nuttx-configs/px4fmu-v2/nsh/defconfig
@@ -501,7 +501,7 @@ CONFIG_MTD=y
 # MTD Configuration
 #
 # CONFIG_MTD_PARTITION is not set
-# CONFIG_MTD_BYTE_WRITE is not set
+CONFIG_MTD_BYTE_WRITE=y
 
 #
 # MTD Device Drivers