diff --git a/regtest/cluster.js b/regtest/cluster.js
index ddeb7429..c8ab8754 100644
--- a/regtest/cluster.js
+++ b/regtest/cluster.js
@@ -156,7 +156,8 @@ describe('Bitcoin Cluster', function() {
 
   it('step 2: receive block events', function(done) {
     this.timeout(10000);
-    node.services.bitcoind.once('tip', function() {
+    node.services.bitcoind.once('tip', function(height) {
+      height.should.equal(1);
       done();
     });
     node.generateBlock(1, function(err, hashes) {