diff --git a/second/printf.c b/second/printf.c
index 9ee31c1..8d32c81 100644
--- a/second/printf.c
+++ b/second/printf.c
@@ -52,6 +52,7 @@ WAY
 #include <stdarg.h>
 #include <stdio.h>
 
+#include "misc.h"
 #include "console.h"
 
 typedef unsigned long u_long;