diff --git a/src/wps/wps_er.c b/src/wps/wps_er.c
index 3eed6e9f4..45de1618c 100644
--- a/src/wps/wps_er.c
+++ b/src/wps/wps_er.c
@@ -1156,9 +1156,8 @@ wps_er_init(struct wps_context *wps, const char *ifname)
 	er->wps = wps;
 	os_get_random((unsigned char *) &er->event_id, sizeof(er->event_id));
 
-	if (get_netif_info(ifname,
-			   &er->ip_addr, &er->ip_addr_text,
-			   er->mac_addr, &er->mac_addr_text)) {
+	if (get_netif_info(ifname, &er->ip_addr, &er->ip_addr_text,
+			   er->mac_addr)) {
 		wpa_printf(MSG_INFO, "WPS UPnP: Could not get IP/MAC address "
 			   "for %s. Does it have IP address?", ifname);
 		wps_er_deinit(er, NULL, NULL);
@@ -1178,9 +1177,8 @@ wps_er_init(struct wps_context *wps, const char *ifname)
 	}
 	er->http_port = http_server_get_port(er->http_srv);
 
-	wpa_printf(MSG_DEBUG, "WPS ER: Start (ifname=%s ip_addr=%s "
-		   "mac_addr=%s)",
-		   er->ifname, er->ip_addr_text, er->mac_addr_text);
+	wpa_printf(MSG_DEBUG, "WPS ER: Start (ifname=%s ip_addr=%s)",
+		   er->ifname, er->ip_addr_text);
 
 	return er;
 }
@@ -1212,7 +1210,6 @@ static void wps_er_deinit_finish(void *eloop_data, void *user_ctx)
 	deinit_done_cb = er->deinit_done_cb;
 	deinit_done_ctx = er->deinit_done_ctx;
 	os_free(er->ip_addr_text);
-	os_free(er->mac_addr_text);
 	os_free(er);
 
 	if (deinit_done_cb)
diff --git a/src/wps/wps_er.h b/src/wps/wps_er.h
index 7719b7dad..f08af913b 100644
--- a/src/wps/wps_er.h
+++ b/src/wps/wps_er.h
@@ -75,7 +75,6 @@ struct wps_er_ap {
 struct wps_er {
 	struct wps_context *wps;
 	char ifname[17];
-	char *mac_addr_text; /* mac addr of network i.f. we use */
 	u8 mac_addr[ETH_ALEN]; /* mac addr of network i.f. we use */
 	char *ip_addr_text; /* IP address of network i.f. we use */
 	unsigned ip_addr; /* IP address of network i.f. we use (host order) */
diff --git a/src/wps/wps_upnp.c b/src/wps/wps_upnp.c
index 705e6aaa0..c6ca3fee6 100644
--- a/src/wps/wps_upnp.c
+++ b/src/wps/wps_upnp.c
@@ -844,11 +844,10 @@ static int eth_get(const char *device, u8 ea[ETH_ALEN])
  * @ip_addr: Buffer for returning IP address in network byte order
  * @ip_addr_text: Buffer for returning a pointer to allocated IP address text
  * @mac: Buffer for returning MAC address
- * @mac_addr_text: Buffer for returning allocated MAC address text
  * Returns: 0 on success, -1 on failure
  */
 int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text,
-		   u8 mac[ETH_ALEN], char **mac_addr_text)
+		   u8 mac[ETH_ALEN])
 {
 	struct ifreq req;
 	int sock = -1;
@@ -856,8 +855,7 @@ int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text,
 	struct in_addr in_addr;
 
 	*ip_addr_text = os_zalloc(16);
-	*mac_addr_text = os_zalloc(18);
-	if (*ip_addr_text == NULL || *mac_addr_text == NULL)
+	if (*ip_addr_text == NULL)
 		goto fail;
 
 	sock = socket(AF_INET, SOCK_DGRAM, 0);
@@ -891,7 +889,6 @@ int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text,
 #else
 #error MAC address fetch not implemented
 #endif
-	os_snprintf(*mac_addr_text, 18, MACSTR, MAC2STR(mac));
 
 	close(sock);
 	return 0;
@@ -901,8 +898,6 @@ fail:
 		close(sock);
 	os_free(*ip_addr_text);
 	*ip_addr_text = NULL;
-	os_free(*mac_addr_text);
-	*mac_addr_text = NULL;
 	return -1;
 }
 
@@ -945,8 +940,6 @@ void upnp_wps_device_stop(struct upnp_wps_device_sm *sm)
 	event_send_stop_all(sm);
 	os_free(sm->wlanevent);
 	sm->wlanevent = NULL;
-	os_free(sm->mac_addr_text);
-	sm->mac_addr_text = NULL;
 	os_free(sm->ip_addr_text);
 	sm->ip_addr_text = NULL;
 	if (sm->multicast_sd >= 0)
@@ -982,9 +975,8 @@ int upnp_wps_device_start(struct upnp_wps_device_sm *sm, char *net_if)
 		goto fail;
 
 	/* Determine which IP and mac address we're using */
-	if (get_netif_info(net_if,
-			   &sm->ip_addr, &sm->ip_addr_text,
-			   sm->mac_addr, &sm->mac_addr_text)) {
+	if (get_netif_info(net_if, &sm->ip_addr, &sm->ip_addr_text,
+			   sm->mac_addr)) {
 		wpa_printf(MSG_INFO, "WPS UPnP: Could not get IP/MAC address "
 			   "for %s. Does it have IP address?", net_if);
 		goto fail;
diff --git a/src/wps/wps_upnp_i.h b/src/wps/wps_upnp_i.h
index 904ff8a92..b31875ac9 100644
--- a/src/wps/wps_upnp_i.h
+++ b/src/wps/wps_upnp_i.h
@@ -113,7 +113,6 @@ struct upnp_wps_device_sm {
 	char *root_dir;
 	char *desc_url;
 	int started; /* nonzero if we are active */
-	char *mac_addr_text; /* mac addr of network i.f. we use */
 	u8 mac_addr[ETH_ALEN]; /* mac addr of network i.f. we use */
 	char *ip_addr_text; /* IP address of network i.f. we use */
 	unsigned ip_addr; /* IP address of network i.f. we use (host order) */
@@ -147,7 +146,7 @@ struct subscription * subscription_find(struct upnp_wps_device_sm *sm,
 					const u8 uuid[UUID_LEN]);
 int send_wpabuf(int fd, struct wpabuf *buf);
 int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text,
-		   u8 mac[ETH_ALEN], char **mac_addr_text);
+		   u8 mac[ETH_ALEN]);
 
 /* wps_upnp_ssdp.c */
 void msearchreply_state_machine_stop(struct advertisement_state_machine *a);