diff --git a/hw/kvm/pci-assign.c b/hw/kvm/pci-assign.c
index 7ce0f37..ddde573 100644
--- a/hw/kvm/pci-assign.c
+++ b/hw/kvm/pci-assign.c
@@ -894,8 +894,7 @@ static int assign_intx(AssignedDevice *dev)
         return -ENOTSUP;
     }
 
-    if (dev->intx_route.mode == intx_route.mode &&
-        dev->intx_route.irq == intx_route.irq) {
+    if (!pci_intx_route_changed(&dev->intx_route, &intx_route)) {
         return 0;
     }