diff --git a/ChangeLog b/ChangeLog
index bd6e311bd..62976120f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2011-06-27  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/net/drivers/ieee1275/ofnet.c (send_card_buffer): Fix
+	prototype.
+	(get_card_packet): Likewise.
+
 2011-06-26  Yves Blusseau  <blusseau@zetam.org>
 
 	Display the path of the file when file is not found
diff --git a/grub-core/net/drivers/ieee1275/ofnet.c b/grub-core/net/drivers/ieee1275/ofnet.c
index 2c264edb1..0394e0dc0 100644
--- a/grub-core/net/drivers/ieee1275/ofnet.c
+++ b/grub-core/net/drivers/ieee1275/ofnet.c
@@ -37,7 +37,7 @@ card_close (struct grub_net_card *dev)
 }
 
 static grub_err_t
-send_card_buffer (struct grub_net_card *dev, struct grub_net_buff *pack)
+send_card_buffer (const struct grub_net_card *dev, struct grub_net_buff *pack)
 {
   int actual;
   int status;
@@ -52,9 +52,8 @@ send_card_buffer (struct grub_net_card *dev, struct grub_net_buff *pack)
 }
 
 static grub_ssize_t
-get_card_packet (struct grub_net_card *dev, struct grub_net_buff *nb)
+get_card_packet (const struct grub_net_card *dev, struct grub_net_buff *nb)
 {
-
   int actual, rc;
   struct grub_ofnetcard_data *data = dev->data;
   grub_uint64_t start_time;