diff --git a/sys/compat/cloudabi/cloudabi_fd.c b/sys/compat/cloudabi/cloudabi_fd.c
index 5912ee49113a..da3c0da59305 100644
--- a/sys/compat/cloudabi/cloudabi_fd.c
+++ b/sys/compat/cloudabi/cloudabi_fd.c
@@ -76,7 +76,7 @@ int
 cloudabi_sys_fd_dup(struct thread *td, struct cloudabi_sys_fd_dup_args *uap)
 {
 
-	return (kern_dup(td, 0, 0, uap->from, 0));
+	return (kern_dup(td, FDDUP_NORMAL, 0, uap->from, 0));
 }
 
 int