diff --git a/kern/rtc.c b/kern/rtc.c
index e351d8a..9cb8cbb 100644
--- a/kern/rtc.c
+++ b/kern/rtc.c
@@ -1,4 +1,3 @@
-#include "stdio.h"
 #include <assert.h>
 #include <rtc.h>
 #include <stdint.h>