diff --git a/unix/ztypes_freebsd_arm.go b/unix/ztypes_freebsd_arm.go
index 9433f0b..b91c2ae 100644
--- a/unix/ztypes_freebsd_arm.go
+++ b/unix/ztypes_freebsd_arm.go
@@ -150,9 +150,9 @@
 	Owner       uint32
 	Fsid        Fsid
 	Charspare   [80]int8
-	Fstypename  [16]int8
-	Mntfromname [88]int8
-	Mntonname   [88]int8
+	Fstypename  [16]byte
+	Mntfromname [88]byte
+	Mntonname   [88]byte
 }
 
 type Flock_t struct {