diff --git a/src/superio/nuvoton/wpcm450/superio.c b/src/superio/nuvoton/wpcm450/superio.c
index ff815cf..5322ace 100644
--- a/src/superio/nuvoton/wpcm450/superio.c
+++ b/src/superio/nuvoton/wpcm450/superio.c
@@ -27,7 +27,7 @@
 #include <stdlib.h>
 #include "wpcm450.h"
 
-static void init(device_t dev)
+static void init(struct device *dev)
 {
 
 	if (!dev->enabled)