diff --git a/quakespasm/Quake/net_wins.c b/quakespasm/Quake/net_wins.c
index ca90c379..cfe5f49a 100644
--- a/quakespasm/Quake/net_wins.c
+++ b/quakespasm/Quake/net_wins.c
@@ -80,6 +80,7 @@ static void WINS_GetLocalAddress (void)
 	if (gethostname(buff, MAXHOSTNAMELEN) == SOCKET_ERROR)
 		return;
 
+	buff[MAXHOSTNAMELEN - 1] = 0;
 	blocktime = Sys_FloatTime();
 	WSASetBlockingHook(BlockingHook);
 	local = gethostbyname(buff);