diff --git a/src/js/bitcoinjs-extensions.js b/src/js/bitcoinjs-extensions.js
index 219395d..3ab395d 100644
--- a/src/js/bitcoinjs-extensions.js
+++ b/src/js/bitcoinjs-extensions.js
@@ -328,3 +328,14 @@ bitcoinjs.bitcoin.networks.komodo = {
   scriptHash: 0x55,
   wif: 0xbc
 };
+
+bitcoinjs.bitcoin.networks.blackcoin = {
+  messagePrefix: '\x18BlackCoin Signed Message:\n',
+  bip32: {
+    public: 0x02CFBEDE,
+    private: 0x02CFBF60
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x55,
+  wif: 0x99
+};
diff --git a/src/js/index.js b/src/js/index.js
index b09a981..580573d 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -1734,6 +1734,14 @@
                 network = bitcoinjs.bitcoin.networks.bitcoin;
                 setHdCoin(144);
             },
+        },
+        {
+            name: "BLK - BlackCoin",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.blackcoin;
+                setHdCoin(10);
+            },
         }
     ]