1 files changed, 1 insertions, 1 deletions
diff --git a/ports/esp8266/network_wlan.c b/ports/esp8266/network_wlan.c
index bf6ac25388..44154ff6d8 100644
--- a/ports/esp8266/network_wlan.c
+++ b/ports/esp8266/network_wlan.c
@@ -345,7 +345,7 @@ static mp_obj_t esp_network_ipconfig(size_t n_args, const mp_obj_t *args, mp_map
                 char addr_str[IPADDR_STRLEN_MAX];
                 ip_addr_t dns_addr = dns_getserver(0);
                 ipaddr_ntoa_r(&dns_addr, addr_str, sizeof(addr_str));
-                return mp_obj_new_str(addr_str, strlen(addr_str));
+                return mp_obj_new_str_from_cstr(addr_str);
             }
             default: {
                 mp_raise_ValueError(MP_ERROR_TEXT("unexpected key"));