diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index b3b6a4378a..5ae3b4984d 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -268,8 +268,9 @@ DeviceState *piix4_create(PCIBus *pci_bus, ISABus **isa_bus, I2CBus **smbus)
     pci_create_simple(pci_bus, devfn + 2, "piix4-usb-uhci");
     if (smbus) {
         *smbus = piix4_pm_init(pci_bus, devfn + 3, 0x1100,
-                               isa_get_irq(NULL, 9), NULL, 0, NULL);
-   }
+                               qdev_get_gpio_in_named(dev, "isa", 9),
+                               NULL, 0, NULL);
+    }
 
     return dev;
 }