1 files changed, 5 insertions, 3 deletions
diff --git a/lib/auto.js b/lib/auto.js
index 35fd012..262e59b 100644
--- a/lib/auto.js
+++ b/lib/auto.js
@@ -2,6 +2,7 @@
 
 import arrayEach from 'lodash/internal/arrayEach';
 import arrayEvery from 'lodash/internal/arrayEvery';
+import baseHas from 'lodash/internal/baseHas';
 import forOwn from 'lodash/object/forOwn';
 import indexOf from 'lodash/array/indexOf';
 import isArray from 'lodash/lang/isArray';
@@ -85,9 +86,10 @@ export default function (tasks, concurrency, callback) {
             }
         }
         function ready() {
-            return runningTasks < concurrency && arrayEvery(requires, function (x) {
-                return results.hasOwnProperty(x);
-            }) && !results.hasOwnProperty(k);
+            return runningTasks < concurrency && !baseHas(results, k) &&
+                arrayEvery(requires, function (x) {
+                    return baseHas(results, x);
+                });
         }
         if (ready()) {
             runningTasks++;