diff --git a/platformio.ini b/platformio.ini
index 70fbdfd..8aff9ca 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -38,5 +38,5 @@ build_flags = -D BOARD_M5ATOM_CANUNIT
 board = m5stack-atom
 lib_deps =
         ${env.lib_deps}
-build_flags = -D BOARD_M5ATOM_CANUNIT -D HAS_RTC -D HAS_M5LCD
+build_flags = -D BOARD_M5STICK_CANUNIT -D HAS_RTC -D HAS_M5LCD