diff --git a/usr.sbin/makefs/ffs/ufs_bswap.h b/usr.sbin/makefs/ffs/ufs_bswap.h
index c3682556bdf4..6e7cc422cab1 100644
--- a/usr.sbin/makefs/ffs/ufs_bswap.h
+++ b/usr.sbin/makefs/ffs/ufs_bswap.h
@@ -40,6 +40,8 @@
 
 #include <sys/endian.h>
 
+#include "makefs.h"
+
 /* Macros to access UFS flags */
 #ifdef FFS_EI
 #define	UFS_MPNEEDSWAP(mp)	(VFSTOUFS(mp)->um_flags & UFS_NEEDSWAP)