diff --git a/qubes/ext/pci.py b/qubes/ext/pci.py
index 934d0fabe..c3938c7e4 100644
--- a/qubes/ext/pci.py
+++ b/qubes/ext/pci.py
@@ -511,8 +511,8 @@ def on_device_pre_detached_pci(self, vm, event, port):
     def on_domain_pre_start(self, vm, _event, **_kwargs):
         # Bind pci devices to pciback driver
         for assignment in vm.devices["pci"].get_assigned_devices():
-            device = _cache_get(assignment.backend_domain, assignment.port_id)
-            self.bind_pci_to_pciback(vm.app, device)
+            for device in assignment.devices:
+                self.bind_pci_to_pciback(vm.app, device)
 
     @staticmethod
     def bind_pci_to_pciback(app, device):