diff --git a/lib/modules/ens/embarkjs.js b/lib/modules/ens/embarkjs.js
index 71d6173b..7decc79d 100644
--- a/lib/modules/ens/embarkjs.js
+++ b/lib/modules/ens/embarkjs.js
@@ -238,7 +238,6 @@ __embarkENS.lookup = function (address, callback) {
 };
 
 __embarkENS.registerSubDomain = function (name, address, callback) {
-  const self = this;
   callback = callback || function () {};
 
   if (this.env !== 'development' && this.env !== 'privatenet') {