diff --git a/util/inteltool/rootcmplx.c b/util/inteltool/rootcmplx.c
index a88b608..a478731 100644
--- a/util/inteltool/rootcmplx.c
+++ b/util/inteltool/rootcmplx.c
@@ -46,6 +46,7 @@
 	case PCI_DEVICE_ID_INTEL_ICH9ME:
 	case PCI_DEVICE_ID_INTEL_ICH10R:
 	case PCI_DEVICE_ID_INTEL_NM10:
+	case PCI_DEVICE_ID_INTEL_I63XX:
 		rcba_phys = pci_read_long(sb, 0xf0) & 0xfffffffe;
 		break;
 	case PCI_DEVICE_ID_INTEL_ICH: