diff --git a/grub-core/net/drivers/ieee1275/ofnet.c b/grub-core/net/drivers/ieee1275/ofnet.c
index 00abc64bb..ac4e62a95 100644
--- a/grub-core/net/drivers/ieee1275/ofnet.c
+++ b/grub-core/net/drivers/ieee1275/ofnet.c
@@ -153,8 +153,8 @@ grub_ieee1275_parse_bootpath (const char *devpath, char *bootpath,
   char *comma_char = 0;
   char *equal_char = 0;
   grub_size_t field_counter = 0;
-  grub_net_network_level_address_t client_addr = {}, gateway_addr = {}, subnet_mask = {};
-  grub_net_link_level_address_t hw_addr = {};
+  grub_net_network_level_address_t client_addr = {0, {0}, 0}, gateway_addr = {0, {0}, 0}, subnet_mask = {0, {0}, 0};
+  grub_net_link_level_address_t hw_addr = {0, {{0, 0, 0, 0, 0, 0}}};
   grub_net_interface_flags_t flags = 0;
   struct grub_net_network_level_interface *inter = NULL;
   grub_uint16_t vlantag = 0;