diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c
index bde0cda..78cdd50 100644
--- a/drivers/hwmon/lm78.c
+++ b/drivers/hwmon/lm78.c
@@ -451,7 +451,7 @@
 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct lm78_data *data = lm78_update_device(dev);
-	return sprintf(buf, "%d\n", vid_from_reg(82, data->vid));
+	return sprintf(buf, "%d\n", vid_from_reg(data->vid, 82));
 }
 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);