diff --git a/lib/results.js b/lib/results.js
index 43b43b2c..fa414f47 100644
--- a/lib/results.js
+++ b/lib/results.js
@@ -35,7 +35,7 @@ Results.prototype.createStream = function (opts) {
                     name: t.name,
                     id: id
                 };
-                if (extra.parent) {
+                if (has(extra, 'parent')) {
                     row.parent = extra.parent;
                 }
                 output.queue(row);