diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index b4a8a5ce0e..e35c22c113 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -726,7 +726,8 @@ void pci_bus_reset(struct bus *bus)
 	delay(1);
 }
 
-void pci_dev_set_subsystem(struct device *dev, unsigned vendor, unsigned device)
+void pci_dev_set_subsystem(struct device *dev, unsigned int vendor,
+			   unsigned int device)
 {
 	pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
 			   ((device & 0xffff) << 16) | (vendor & 0xffff));
diff --git a/src/drivers/ricoh/rce822/rce822.c b/src/drivers/ricoh/rce822/rce822.c
index b364946e56..297dd61606 100644
--- a/src/drivers/ricoh/rce822/rce822.c
+++ b/src/drivers/ricoh/rce822/rce822.c
@@ -39,7 +39,8 @@ static void rce822_init(struct device *dev)
 	pci_write_config8(dev, 0xf9, 0x00);
 }
 
-static void rce822_set_subsystem(struct device *dev, unsigned vendor, unsigned device)
+static void rce822_set_subsystem(struct device *dev, unsigned int vendor,
+				 unsigned int device)
 {
 	if (!vendor || !device) {
 		pci_write_config32(dev, 0xac,