diff --git a/drivers/net/3c527.c b/drivers/net/3c527.c
index 323b6e5..625e57d 100644
--- a/drivers/net/3c527.c
+++ b/drivers/net/3c527.c
@@ -222,7 +222,7 @@
 static struct	net_device_stats *mc32_get_stats(struct net_device *dev);
 static void	mc32_set_multicast_list(struct net_device *dev);
 static void	mc32_reset_multicast_list(struct net_device *dev);
-static struct ethtool_ops netdev_ethtool_ops;
+static const struct ethtool_ops netdev_ethtool_ops;
 
 static void cleanup_card(struct net_device *dev)
 {
@@ -1627,7 +1627,7 @@
 	mc32_debug = level;
 }
 
-static struct ethtool_ops netdev_ethtool_ops = {
+static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
 	.get_msglevel		= netdev_get_msglevel,
 	.set_msglevel		= netdev_set_msglevel,