diff --git a/src/device/device_util.c b/src/device/device_util.c
index 83decc1..dc43b9a 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -100,7 +100,7 @@
  * @param device Logical device number.
  * @return Pointer to the device structure (if found), 0 otherwise.
  */
-struct device *dev_find_slot_pnp(u16 port, u8 device)
+struct device *dev_find_slot_pnp(u16 port, u16 device)
 {
 	struct device *dev;