diff --git a/lib/contracts/deploy_manager.js b/lib/contracts/deploy_manager.js
index f39aaeb29..815847d37 100644
--- a/lib/contracts/deploy_manager.js
+++ b/lib/contracts/deploy_manager.js
@@ -62,7 +62,7 @@ class DeployManager {
 
     async.waterfall([
       function buildContracts(callback) {
-        self.events.request("contracts:build", self.deployOnlyOnConfig, (cb) => {
+        self.events.request("contracts:build", self.deployOnlyOnConfig, () => {
           callback();
         });
       },