diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp b/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
index 10dae7094..b3c522579 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFi.cpp
@@ -370,9 +370,9 @@ IPAddress ESP8266WiFiClass::gatewayIP()
     return IPAddress(ip.gw.addr);
 }
 
-IPAddress ESP8266WiFiClass::dnsIP()
+IPAddress ESP8266WiFiClass::dnsIP(int dns_no)
 {
-    ip_addr_t dns_ip = dns_getserver(0);
+    ip_addr_t dns_ip = dns_getserver(dns_no);
     return IPAddress(dns_ip.addr);
 }
 
diff --git a/libraries/ESP8266WiFi/src/ESP8266WiFi.h b/libraries/ESP8266WiFi/src/ESP8266WiFi.h
index 23ee644a4..4fcc21f26 100644
--- a/libraries/ESP8266WiFi/src/ESP8266WiFi.h
+++ b/libraries/ESP8266WiFi/src/ESP8266WiFi.h
@@ -173,7 +173,7 @@ public:
      *
      * return: DNS ip address value
      */
-   IPAddress dnsIP();
+   IPAddress dnsIP(int dns_no = 0);
 
     /*
      * Return the current SSID associated with the network