diff --git a/lib/node.js b/lib/node.js
index cc8206c..cf1f8e9 100644
--- a/lib/node.js
+++ b/lib/node.js
@@ -13,6 +13,7 @@ var Primus = require('primus'),
 
 var ETH_VERSION,
 	NET_VERSION,
+	PROTOCOL_VERSION,
 	API_VERSION;
 var INSTANCE_NAME = process.env.INSTANCE_NAME;
 
@@ -49,6 +50,7 @@ function Node()
 	try {
 		ETH_VERSION = web3.version.client;
 		NET_VERSION = web3.version.network;
+		PROTOCOL_VERSION = web3.toDecimal(web3.version.ethereum);
 		API_VERSION = web3.version.api;
 	}
 	catch (err) {
@@ -61,6 +63,7 @@ function Node()
 		contact: (process.env.CONTACT_DETAILS || ""),
 		node: ETH_VERSION,
 		net: NET_VERSION,
+		protocol: PROTOCOL_VERSION,
 		api: API_VERSION,
 		port: (process.env.LISTENING_PORT || 30303),
 		os: os.platform(),