diff --git a/src/include/pci_ids.h b/src/include/pci_ids.h
index fdcce159a1..4ce4c66457 100644
--- a/src/include/pci_ids.h
+++ b/src/include/pci_ids.h
@@ -333,6 +333,7 @@
 #define PCI_DEVICE_ID_SI_300		0x0300
 #define PCI_DEVICE_ID_SI_530		0x0530
 #define PCI_DEVICE_ID_SI_540		0x0540
+#define PCI_DEVICE_ID_SI_550		0x0550
 #define PCI_DEVICE_ID_SI_601		0x0601
 #define PCI_DEVICE_ID_SI_620		0x0620
 #define PCI_DEVICE_ID_SI_630		0x0630