diff --git a/sys/pc98/boot/netboot/makerom.c b/sys/pc98/boot/netboot/makerom.c
index b5b10089783..51b1c2868a5 100644
--- a/sys/pc98/boot/netboot/makerom.c
+++ b/sys/pc98/boot/netboot/makerom.c
@@ -6,7 +6,7 @@ This program strips off the FreeBSD a.out header!
 
 ************************************************************************/
 #include <stdio.h>
-#include <fcntl.h>
+#include <sys/fcntl.h>
 
 unsigned char rom[ROMSIZE];
 unsigned int sum;