diff --git a/src/southbridge/intel/i82801ix/pcie.c b/src/southbridge/intel/i82801ix/pcie.c
index a8e7b11..3900e92 100644
--- a/src/southbridge/intel/i82801ix/pcie.c
+++ b/src/southbridge/intel/i82801ix/pcie.c
@@ -23,8 +23,7 @@
 	// This has no effect but the OS might expect it
 	pci_write_config8(dev, 0x0c, 0x10);
 
-	pci_update_config16(dev, PCI_BRIDGE_CONTROL, ~PCI_BRIDGE_CTL_PARITY,
-			    PCI_BRIDGE_CTL_NO_ISA);
+	pci_and_config16(dev, PCI_BRIDGE_CONTROL, ~PCI_BRIDGE_CTL_PARITY);
 
 	/* Enable IO xAPIC on this PCIe port */
 	pci_or_config32(dev, 0xd8, 1 << 7);