From 7d6809b57fe3f8c52253e5b02b057b5cb45eae5c Mon Sep 17 00:00:00 2001
From: Iuri Matias <iuri.matias@gmail.com>
Date: Sat, 15 Sep 2018 12:52:11 -0400
Subject: [PATCH] take into account when event does not trigger a cb

---
 lib/modules/ens/index.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/modules/ens/index.js b/lib/modules/ens/index.js
index bef34d59f..85b182ed7 100644
--- a/lib/modules/ens/index.js
+++ b/lib/modules/ens/index.js
@@ -33,7 +33,11 @@ class ENS {
     this.events.setCommandHandler("storage:ens:associate", this.associateStorageToEns.bind(this));
   }
 
-  setProviderAndRegisterDomains(cb) {
+  setProviderAndRegisterDomains(_cb) {
+    let cb = _cb
+    if (!cb) {
+      cb = function() {}
+    }
     const self = this;
     async.parallel([
       function getENSRegistry(paraCb) {