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-rw-r--r--platforms/avr/drivers/serial.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/platforms/avr/drivers/serial.c b/platforms/avr/drivers/serial.c
index 7a4e5e76e6..ab0b52afd1 100644
--- a/platforms/avr/drivers/serial.c
+++ b/platforms/avr/drivers/serial.c
@@ -16,6 +16,7 @@
#include <util/delay.h>
#include <stddef.h>
#include <stdbool.h>
+#include "gpio.h"
#include "serial.h"
#ifdef SOFT_SERIAL_PIN