diff --git a/bootstrap/src/initnsmgr.rs b/bootstrap/src/initnsmgr.rs
index 406cace436..12d678c48d 100644
--- a/bootstrap/src/initnsmgr.rs
+++ b/bootstrap/src/initnsmgr.rs
@@ -173,10 +173,8 @@ impl<'sock> NamespaceScheme<'sock> {
             return Err(Error::new(ENODEV));
         };
 
-        let reserved = syscall::reserve_fd(1)?;
-        let scheme_fd = syscall::openat_into(
+        let scheme_fd = syscall::openat(
             cap_fd.as_raw_fd(),
-            reserved,
             reference,
             flags,
             fcntl_flags as usize,