diff --git a/meson.build b/meson.build
index a6492e94..8fa1dd78 100644
--- a/meson.build
+++ b/meson.build
@@ -266,7 +266,7 @@ mk22fn512_inc = ['platform/mcu/CMSIS/Include',
                  'platform/mcu/MK22FN512xxx12',
                  'platform/mcu/MK22FN512xxx12/drivers']
 
-mk22fn512_def = {}
+mk22fn512_def = {'MK22FN512xx': ''}
 
 mk22fn512_src += miosix_cm4f_src
 mk22fn512_inc += miosix_cm4f_inc
diff --git a/platform/drivers/GPIO/gpio-native.h b/platform/drivers/GPIO/gpio-native.h
index 2e7a8556..e4c59444 100644
--- a/platform/drivers/GPIO/gpio-native.h
+++ b/platform/drivers/GPIO/gpio-native.h
@@ -18,10 +18,9 @@
 #ifndef GPIO_NATIVE_H
 #define GPIO_NATIVE_H
 
-#if defined(PLATFORM_MD3x0) || defined(PLATFORM_MDUV3x0) \
- || defined(PLATFORM_MD9600) || defined(PLATFORM_MOD17)
+#if defined(STM32F405xx)
 #include <gpio_stm32.h>
-#elif defined(PLATFORM_GD77) || defined(PLATFORM_DM1801)
+#elif defined(MK22FN512xx)
 #include <gpio_mk22.h>
 #endif