From e7c33840dca804c5c41ca6ce8888bfa16f8c1a47 Mon Sep 17 00:00:00 2001
From: ellensp <530024+ellensp@users.noreply.github.com>
Date: Sat, 7 Aug 2021 08:54:02 +1200
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Fix=20MKS=20'USB=20Flash=20MSC'?=
 =?UTF-8?q?=20environments=20(#22515)?=
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---
 ini/stm32f4.ini | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ini/stm32f4.ini b/ini/stm32f4.ini
index d2332630a1..b32efb83a9 100644
--- a/ini/stm32f4.ini
+++ b/ini/stm32f4.ini
@@ -388,8 +388,9 @@ build_flags       = ${stm_flash_drive.build_flags} ${stm32f4_I2C1.build_flags}
 [env:mks_robin_nano_v3_usb_flash_drive_msc]
 platform          = ${common_stm32.platform}
 extends           = env:mks_robin_nano_v3_usb_flash_drive
-build_flags       = ${env:mks_robin_nano_v3_usb_flash_drive}
+build_flags       = ${env:mks_robin_nano_v3_usb_flash_drive.build_flags}
                     -DUSBD_USE_CDC_MSC
+build_unflags     = -DUSBD_USE_CDC
 
 #
 # This I2C1(PB8:I2C1_SCL PB9:I2C1_SDA) is used by MKS Monster8
@@ -434,5 +435,6 @@ build_flags       = ${stm_flash_drive.build_flags} ${stm32f4_I2C1_CAN.build_flag
 [env:mks_monster8_usb_flash_drive_msc]
 platform          = ${common_stm32.platform}
 extends           = env:mks_monster8_usb_flash_drive
-build_flags       = ${env:mks_monster8_usb_flash_drive}
+build_flags       = ${env:mks_monster8_usb_flash_drive.build_flags}
                     -DUSBD_USE_CDC_MSC
+build_unflags     = -DUSBD_USE_CDC