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-rw-r--r--src/avr/serial.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/avr/serial.c b/src/avr/serial.c
index fc71cf0e..33b42fc6 100644
--- a/src/avr/serial.c
+++ b/src/avr/serial.c
@@ -7,6 +7,7 @@
#include <avr/interrupt.h> // USART0_RX_vect
#include <string.h> // memmove
#include "autoconf.h" // CONFIG_SERIAL_BAUD
+#include "board/io.h" // readb
#include "board/misc.h" // console_get_input
#include "sched.h" // DECL_INIT
#include "irq.h" // irq_save