diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 5e1426f..085d3a0 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -53,7 +53,7 @@
 /* Convert from media address format to discovery message addr format */
 static int tipc_eth_addr2msg(char *msg, struct tipc_media_addr *addr)
 {
-	memset(msg, 0, TIPC_MEDIA_ADDR_SIZE);
+	memset(msg, 0, TIPC_MEDIA_INFO_SIZE);
 	msg[TIPC_MEDIA_TYPE_OFFSET] = TIPC_MEDIA_TYPE_ETH;
 	memcpy(msg + ETH_ADDR_OFFSET, addr->value, ETH_ALEN);
 	return 0;