diff --git a/src/runtime-rs/crates/hypervisor/src/device/driver/vfio.rs b/src/runtime-rs/crates/hypervisor/src/device/driver/vfio.rs
index eaad098d42..c2e8dacafa 100644
--- a/src/runtime-rs/crates/hypervisor/src/device/driver/vfio.rs
+++ b/src/runtime-rs/crates/hypervisor/src/device/driver/vfio.rs
@@ -177,6 +177,7 @@ pub struct HostDevice {
     pub guest_pci_path: Option<PciPath>,
 
     /// vfio_vendor for vendor's some special cases.
+    #[allow(unexpected_cfgs)]
     #[cfg(feature = "enable-vendor")]
     pub vfio_vendor: VfioVendor,
 }