diff --git a/Examples/PiGateway/PiGateway_withLCD.ino b/Examples/PiGateway/PiGateway_withLCD.ino
index e906d5b..3a40c97 100644
--- a/Examples/PiGateway/PiGateway_withLCD.ino
+++ b/Examples/PiGateway/PiGateway_withLCD.ino
@@ -26,6 +26,7 @@
 //#define NODEID          1
 //#define NETWORKID     200
 //#define FREQUENCY     RF69_915MHZ //Match this with the version of your Moteino! (others: RF69_433MHZ, RF69_868MHZ)
+//#define ENCRYPTKEY    "sampleEncryptKey" //has to be same 16 characters/bytes on all nodes, not more not less!
 //#define IS_RFM69HW    //uncomment only for RFM69HW! Leave out if you have RFM69W!
 //#define LED             9
 //#define FLASH_CS        8