diff --git a/ports/mimxrt10xx/reset.h b/ports/mimxrt10xx/reset.h
index c7569202c7..ea56df02a1 100644
--- a/ports/mimxrt10xx/reset.h
+++ b/ports/mimxrt10xx/reset.h
@@ -30,6 +30,8 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+#include "py/mpconfig.h"
+
 // Copied from inc/uf2.h in https://github.com/Microsoft/uf2-samd21
 #define DBL_TAP_MAGIC 0xf01669ef // Randomly selected, adjusted to have first and last bit set
 #define DBL_TAP_MAGIC_QUICK_BOOT 0xf02669ef