diff --git a/board/main.c b/board/main.c
index 78aeed0..7e9c3cd 100644
--- a/board/main.c
+++ b/board/main.c
@@ -1,4 +1,3 @@
-#include <util/delay.h>
 #include "driver/usart.h"
 #include "driver/led.h"
 #include "driver/adc.h"