diff --git a/extlinux/main.c b/extlinux/main.c
index a7ebd49..69bb164 100644
--- a/extlinux/main.c
+++ b/extlinux/main.c
@@ -41,6 +41,7 @@
 #include <sys/types.h>
 #include <sys/mount.h>
 #include <sys/vfs.h>
+#include <sys/sysmacros.h>
 
 #include "linuxioctl.h"