diff --git a/platform.txt b/platform.txt
index d1c3fb3a3dd..970a4241d31 100644
--- a/platform.txt
+++ b/platform.txt
@@ -148,13 +148,13 @@ recipe.hooks.prebuild.8.pattern=/usr/bin/env bash -c "cp -f "{compiler.sdk.path}
 recipe.hooks.prebuild.8.pattern.windows=cmd /c COPY /y "{compiler.sdk.path}\sdkconfig" "{build.path}\sdkconfig"
 
 ## Compile c files
-recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.extra_flags} {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_VARIANT="{build.variant}" -DARDUINO_PARTITION_{build.partitions} {build.extra_flags} {compiler.cpreprocessor.flags} {includes} "@{build.opt.path}" "@{file_opts.path}" "{source_file}" -o "{object_file}"
+recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.extra_flags} {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_VARIANT="{build.variant}" -DARDUINO_ESP32_MCU_{build.mcu} -DARDUINO_PARTITION_{build.partitions} {build.extra_flags} {compiler.cpreprocessor.flags} {includes} "@{build.opt.path}" "@{file_opts.path}" "{source_file}" -o "{object_file}"
 
 ## Compile c++ files
-recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.extra_flags} {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_VARIANT="{build.variant}" -DARDUINO_PARTITION_{build.partitions} {build.extra_flags} {compiler.cpreprocessor.flags} {includes} "@{build.opt.path}" "@{file_opts.path}" "{source_file}" -o "{object_file}"
+recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.extra_flags} {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_VARIANT="{build.variant}" -DARDUINO_ESP32_MCU_{build.mcu} -DARDUINO_PARTITION_{build.partitions} {build.extra_flags} {compiler.cpreprocessor.flags} {includes} "@{build.opt.path}" "@{file_opts.path}" "{source_file}" -o "{object_file}"
 
 ## Compile S files
-recipe.S.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.S.extra_flags} {compiler.S.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_VARIANT="{build.variant}" -DARDUINO_PARTITION_{build.partitions} {build.extra_flags} {compiler.cpreprocessor.flags} {includes} "@{build.opt.path}" "@{file_opts.path}" "{source_file}" -o "{object_file}"
+recipe.S.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.S.extra_flags} {compiler.S.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} -DARDUINO_BOARD="{build.board}" -DARDUINO_VARIANT="{build.variant}" -DARDUINO_ESP32_MCU_{build.mcu} -DARDUINO_PARTITION_{build.partitions} {build.extra_flags} {compiler.cpreprocessor.flags} {includes} "@{build.opt.path}" "@{file_opts.path}" "{source_file}" -o "{object_file}"
 
 ## Create archives
 recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" {compiler.ar.flags} {compiler.ar.extra_flags} "{archive_file_path}" "{object_file}"