diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index f7e1e18..a00dcc4 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -691,7 +691,7 @@
 static int smsc95xx_ethtool_getregslen(struct net_device *netdev)
 {
 	/* all smsc95xx registers */
-	return COE_CR - ID_REV + 1;
+	return COE_CR - ID_REV + sizeof(u32);
 }
 
 static void