diff --git a/sys/amd64/pci/pci_bus.c b/sys/amd64/pci/pci_bus.c
index 83990f8fdb6d..4e325b225b67 100644
--- a/sys/amd64/pci/pci_bus.c
+++ b/sys/amd64/pci/pci_bus.c
@@ -175,6 +175,9 @@ nexus_pcib_is_host_bridge(int bus, int slot, int func,
 		break;
 
 		/* AMD -- vendor 0x1022 */
+	case 0x30001022:
+		s = "AMD Elan SC520 host to PCI bridge";
+		break;
 	case 0x70061022:
 		s = "AMD-751 host to PCI bridge";
 		break;
diff --git a/sys/i386/pci/pci_bus.c b/sys/i386/pci/pci_bus.c
index 83990f8fdb6d..4e325b225b67 100644
--- a/sys/i386/pci/pci_bus.c
+++ b/sys/i386/pci/pci_bus.c
@@ -175,6 +175,9 @@ nexus_pcib_is_host_bridge(int bus, int slot, int func,
 		break;
 
 		/* AMD -- vendor 0x1022 */
+	case 0x30001022:
+		s = "AMD Elan SC520 host to PCI bridge";
+		break;
 	case 0x70061022:
 		s = "AMD-751 host to PCI bridge";
 		break;