diff --git a/src/js/bitcoinjs-extensions.js b/src/js/bitcoinjs-extensions.js
index 8744142..d4b73d6 100644
--- a/src/js/bitcoinjs-extensions.js
+++ b/src/js/bitcoinjs-extensions.js
@@ -297,7 +297,7 @@ bitcoinjs.bitcoin.networks.nubits = {
 };
 
 bitcoinjs.bitcoin.networks.bgold = {
-  messagePrefix: 'unused',
+  messagePrefix: '\x1DBitcoin Gold Signed Message:\n',
     bip32: {
       public: 0x0488b21e,
       private: 0x0488ade4