diff --git a/slirp/ncsi.c b/slirp/ncsi.c
index 10decfb5ef..8594382270 100644
--- a/slirp/ncsi.c
+++ b/slirp/ncsi.c
@@ -128,7 +128,7 @@ void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len)
     memset(reh->h_source, 0xff, ETH_ALEN);
     reh->h_proto = htons(ETH_P_NCSI);
 
-    for (i = 0; i < ARRAY_SIZE(ncsi_rsp_handlers); i++) {
+    for (i = 0; i < G_N_ELEMENTS(ncsi_rsp_handlers); i++) {
         if (ncsi_rsp_handlers[i].type == nh->type + 0x80) {
             handler = &ncsi_rsp_handlers[i];
             break;
diff --git a/slirp/tftp.c b/slirp/tftp.c
index 735b57aa55..a9ba1480db 100644
--- a/slirp/tftp.c
+++ b/slirp/tftp.c
@@ -359,7 +359,7 @@ static void tftp_handle_rrq(Slirp *slirp, struct sockaddr_storage *srcsas,
       return;
   }
 
-  while (k < pktlen && nb_options < ARRAY_SIZE(option_name)) {
+  while (k < pktlen && nb_options < G_N_ELEMENTS(option_name)) {
       const char *key, *value;
 
       key = &tp->x.tp_buf[k];
@@ -403,7 +403,7 @@ static void tftp_handle_rrq(Slirp *slirp, struct sockaddr_storage *srcsas,
   }
 
   if (nb_options > 0) {
-      assert(nb_options <= ARRAY_SIZE(option_name));
+      assert(nb_options <= G_N_ELEMENTS(option_name));
       tftp_send_oack(spt, option_name, option_value, nb_options, tp);
       return;
   }