diff --git a/libraries/ESP8266WiFi/examples/NTPClient/NTPClient.ino b/libraries/ESP8266WiFi/examples/NTPClient/NTPClient.ino
index 927e78fee9..c1ad131470 100644
--- a/libraries/ESP8266WiFi/examples/NTPClient/NTPClient.ino
+++ b/libraries/ESP8266WiFi/examples/NTPClient/NTPClient.ino
@@ -30,7 +30,7 @@ const char * ssid = STASSID; // your network SSID (name)
 const char * pass = STAPSK;  // your network password
 
 
-unsigned int localPort = 2390;      // local port to listen for UDP packets
+unsigned int localPort = 123;      // local port to listen for UDP packets
 
 /* Don't hardwire the IP address or we won't get the benefits of the pool.
     Lookup the IP address for the host name instead */