diff --git a/lib/chain_manager.js b/lib/chain_manager.js
index bc93be3b2..abd0aea9b 100644
--- a/lib/chain_manager.js
+++ b/lib/chain_manager.js
@@ -32,7 +32,7 @@ ChainManager.prototype.init = function(env, config) {
   if(!block){
     throw new Error("Cannot get the genesis block, is embark blockchain running ?");
   }
-  var chainId = web3.eth.getBlock(0).hash;
+  var chainId = block.hash;
 
   if (this.chainManagerConfig[chainId] === undefined) {
     this.chainManagerConfig[chainId] = {contracts: {}};