diff --git a/stand/userboot/userboot/libuserboot.h b/stand/userboot/userboot/libuserboot.h
index fa60180c6b08..75732c6c0e38 100644
--- a/stand/userboot/userboot/libuserboot.h
+++ b/stand/userboot/userboot/libuserboot.h
@@ -44,7 +44,7 @@ extern int userboot_disk_maxunit;
 extern struct devsw host_dev;
 
 /* access to host filesystem */
-struct fs_ops host_fsops;
+extern struct fs_ops host_fsops;
 
 struct bootinfo;
 struct preloaded_file;