diff --git a/boot/boot.h b/boot/boot.h
index 2b12be5..46a293d 100644
--- a/boot/boot.h
+++ b/boot/boot.h
@@ -49,6 +49,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <stdint.h>
+
 extern uint8_t	_start[];
 
 extern uint8_t	startup[];