diff --git a/lib/contracts/contract_deployer.js b/lib/contracts/contract_deployer.js
index 921f9f2a5..234769540 100644
--- a/lib/contracts/contract_deployer.js
+++ b/lib/contracts/contract_deployer.js
@@ -59,9 +59,7 @@ class ContractDeployer {
       } else {
         nextEachCb(null, arg);
       }
-    }, (err, realArgs) => {
-      callback(realArgs);
-    });
+    }, callback);
   }
 
   checkAndDeployContract(contract, params, callback) {
@@ -75,7 +73,10 @@ class ContractDeployer {
 
     async.waterfall([
       function _determineArguments(next) {
-        self.determineArguments(params || contract.args, contract, (realArgs) => {
+        self.determineArguments(params || contract.args, contract, (err, realArgs) => {
+          if (err) {
+            return next(err);
+          }
           contract.realArgs = realArgs;
           next();
         });
diff --git a/lib/contracts/deploy_manager.js b/lib/contracts/deploy_manager.js
index 815847d37..ff87adf4a 100644
--- a/lib/contracts/deploy_manager.js
+++ b/lib/contracts/deploy_manager.js
@@ -44,7 +44,6 @@ class DeployManager {
             return done();
           }
           self.logger.info(__("finished deploying contracts"));
-          self.logger.trace(arguments);
           done(err);
         }
       );