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 292d53b206..7d8abd2e09 100644
--- a/src/runtime-rs/crates/hypervisor/src/device/driver/vfio.rs
+++ b/src/runtime-rs/crates/hypervisor/src/device/driver/vfio.rs
@@ -482,7 +482,7 @@ impl Device for VfioDevice {
 
     async fn detach(
         &mut self,
-        _pcie_topo: &mut Option<&mut PCIeTopology>,
+        pcie_topo: &mut Option<&mut PCIeTopology>,
         h: &dyn hypervisor,
     ) -> Result<Option<u64>> {
         if self
@@ -505,6 +505,8 @@ impl Device for VfioDevice {
             None
         };
 
+        unregister_pcie_device!(self, pcie_topo)?;
+
         Ok(device_index)
     }