diff --git a/lib/6to5/generation/generator.js b/lib/6to5/generation/generator.js
index 0ee1630016..ef9d8a7d4f 100644
--- a/lib/6to5/generation/generator.js
+++ b/lib/6to5/generation/generator.js
@@ -215,12 +215,8 @@ CodeGenerator.prototype.print = function (node, parent, opts) {
   var newline = function (leading) {
     var ignoreDuplicates = false;
 
-    if (!opts.statement) {
-      if (n.isUserWhitespacable(node, parent)) {
-        ignoreDuplicates = true;
-      } else {
-        return;
-      }
+    if (!opts.statement && !n.isUserWhitespacable(node, parent)) {
+      return;
     }
 
     var lines = 0;
@@ -234,7 +230,7 @@ CodeGenerator.prototype.print = function (node, parent, opts) {
       }
     } else {
       // generated node
-      if (!leading) lines++; // definently include a single line
+      if (!leading) lines++; // always include at least a single line after
 
       var needs = n.needsWhitespaceAfter;
       if (leading) needs = n.needsWhitespaceBefore;
@@ -252,12 +248,14 @@ CodeGenerator.prototype.print = function (node, parent, opts) {
     if (opts.before) opts.before();
     this.map.mark(node, "start");
 
-    var needsParans = node.start == null && n.needsParans(node, parent);
-    if (needsParans) this.push("(");
+    // only compute if this node needs parens if our parent has been changed
+    // since acorn would've wrapped us in a ParanthesizedExpression
+    var needsParens = parent !== node._parent && n.needsParens(node, parent);
+    if (needsParens) this.push("(");
 
     this[node.type](node, this.buildPrint(node), parent);
 
-    if (needsParans) this.push(")");
+    if (needsParens) this.push(")");
 
     this.map.mark(node, "end");
     if (opts.after) opts.after();