diff --git a/buildroot/share/PlatformIO/boards/chitu_f103.json b/buildroot/share/PlatformIO/boards/CHITU_F103.json
similarity index 100%
rename from buildroot/share/PlatformIO/boards/chitu_f103.json
rename to buildroot/share/PlatformIO/boards/CHITU_F103.json
diff --git a/platformio.ini b/platformio.ini
index ae08ee933..eac46b660 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -672,7 +672,7 @@ lib_ignore  = LiquidCrystal, LiquidTWI2, Adafruit NeoPixel, TMCStepper, U8glib-H
 [env:chitu_f103]
 platform      = ${common_stm32f1.platform}
 extends       = common_stm32f1
-board         = chitu_f103
+board         = CHITU_F103
 extra_scripts = pre:buildroot/share/PlatformIO/scripts/STM32F1_create_variant.py
   buildroot/share/PlatformIO/scripts/chitu_crypt.py
 build_flags   = ${common_stm32f1.build_flags}