diff --git a/lib/6to5/generators/expressions.js b/lib/6to5/generators/expressions.js
index 715ab148a5..e8909f6643 100644
--- a/lib/6to5/generators/expressions.js
+++ b/lib/6to5/generators/expressions.js
@@ -30,10 +30,9 @@ exports.ConditionalExpression = function (node, print) {
 };
 
 exports.NewExpression = function (node, print) {
-  this.push("new (");
+  this.push("new ");
   print(node.callee);
-  this.push(")");
-  if (node.arguments) {
+  if (node.arguments.length) {
     this.push("(");
     this.printJoin(print, node.arguments, ", ");
     this.push(")");